Rathis

This article has a strategy guide. All information on mechanics, setups, and tactics is on the subpage.

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Rathis
Release																				19 April 2021 (Update)
Members																				Yes
Options																				Attack, Examine
Race																				Dinosaur
Examine																				A fierce, spiked beast. It has evolved to attack from afar, despite being a fearsome foe up close.
Combat info
Combat level																				888
Life points																				190,000
Aggressive
Poisonous
Combat experience
XP																				9,500
XP																				4,500
XP																				3,135
XP																				855 (two-handed) 427 (one-handed and armour)
Slayer info
Level																				1
Assignment																				Dinosaurs
Master																				Laniakea: 70–110
Offensive
Max hit
3,129												3,500												0												0												4,500
Style																														Rate
																														6 ticks (3.6s)
Combat levels
80															140															1															1
Accuracy
1,924															6,988															0															0
Defensive
Armour																				Weakness															Susceptible
2,829										96
Base hit chance
82															64															10															10
Immunities
Not immune															Not immune															Immune															Not immune
Advanced data
NPC ID															27794, 27797
Links															bestiary • MRND

Rathis is the corbicula rex matriarch, one of the four Rex Matriarchs. Rathis attacks with poisonous ranged attacks and is weak to melee, specifically stabbing weapons. Although she counts as a dinosaur for the purpose of a Slayer assignment, Tuska's Wrath will not deal its full damage.

Obtaining all all unique drops from Rathis and the other two Rex Matriarchs will complete the Rex Flex feat which unlocks the title [Name] the Ferocious.

Location

Location	Levels	Members	Requirements	Spawns	Map
Anachronia	888		None	1	Show map

Instance information

Matriarch lair
Boss	Rathis
Access location	Matriarch lair (Rex Matriarch lair)
Instance cost	250,000 (187,500)
Grave location	Outside the lair
Max players for Boss timer	1
Notes
N/A

History

Rathis along with the other two matriarchs are experiments from the Dactyl dragonkin Kerapac, who surgically removed glands and sacs from Raksha and grafted them to the matriarchs; specifically, venom sacs that allowed Raksha to poison foes through spitting it and through spines on its body were grafted into Rathis. Kerapac considered the surgery a success, despite the lowered potency of the ability the matriarch displayed compared to how Raksha was able to use it.

At some point, Kerapac used either the eggs of the matriarchs or the offspring of their eggs in experiments to combine the traits of the other matriarchs along with dragonkin blood. These experiments eventually led to the creation of the egg that would hatch into the Queen Black Dragon, with another dragonkin, Phalaks attempting something similar; his experiment led to the creation of the King Black Dragon. Kerapac's experiment kept many of the qualities related to size and power of the dinosaurs, while Phalak's experiment kept the original attributes obtained from splicing Raksha's glands.

Strategy

Main article: Rex Matriarchs/Strategies

Drops

Drop rates estimated based on 46,839 samples from the Drop Log Project, unless otherwise cited.

The average Rathis kill is worth 162,770 coins.

100%

	Item	Quantity	Rarity	GE price	High Alch
	Dinosaur bones	2	Always	36,476	2
	Damaged dinosaur hide	4–6	Always	20,000–30,000	20,000–30,000

Main drops

	Item	Quantity	Rarity	GE price	High Alch
	Coins	69,027–123,649	20/128	69,027–123,649	69,027–123,649
	Coins	550,000–700,000	1/128	550,000–700,000	550,000–700,000
	Damaged dinosaur hide	40–60 (noted)	2/128	200,000–300,000	200,000–300,000
	Super ranging potion (3)	5 (noted)	13/128	37,420	860
	Arbuck seed	2	12/128	102,056	76
	Watermelon seed	20–30	13/128	8,460–12,690	660–990
	Toadflax seed	1–2	12/128	546–1,092	20–40
	Inert adrenaline crystal	5 (noted)	5/128	6,050	12,000
	Medium blunt rune salvage	4–8 (noted)	14/128	85,096–170,192	96,000–192,000
	Large spiky rune salvage	4–6 (noted)	13/128	117,560–176,340	128,000–192,000
	Onyx bolt tips	17–23	13/128	105,128–142,232	91,800–124,200
	Uncut dragonstone	8–20 (noted)	9/128	42,544–106,360	4,800–12,000
	Ancient scale	1	1/200	1,033,792	60,000
	Draconic energy	1	1/200	456,737	6,000
	Sirenic scale	1	1/200	14,038	6,000

Rare drop table

There is a 1/128 chance of rolling the rare drop table.
Luck-enhancing items are not required to access the table, but they will increase the chance of accessing the rare drop table and may also improve the loot received from it.

Rare drop table

Item Quantity Rarity GE price High Alch Uncut dragonstone (m) 1 1/1,024–1/832 5,318 600 Tooth half of a key (m) 1 1/1,365.33–1/1,109.33 8,366 1 Loop half of a key (m) 1 1/1,365.33–1/1,109.33 8,377 1 Huge plated rune salvage 1 (noted) 1/1,638.4–1/1,331.2 37,497 40,000 Magic logs (m) 65–85 (noted) 1/2,048–1/1,664 50,635–66,215 12,480–16,320 Rune arrowheads 110–140 1/2,048–1/1,664 18,260–23,240 660–840 Soft clay (m) 35–45 (noted) 1/2,048–1/1,664 88,585–113,895 35–45 Small bladed orikalkum salvage (m) 1 (noted) 1/4,096–1/3,328 47,400 50,000 Catalytic anima stone (m) 35–45 1/4,096–1/3,328 46,550–59,850 6,300–8,100 Teak plank (m) 45–55 (noted) 1/4,096–1/3,328 8,370–10,230 13,500–16,500 Dragon bones (m) 35–45 (noted) 1/4,096–1/3,328 67,340–86,580 35–45 Dragon helm (m) 1 1/3,651.03–1/2,966.46 57,672 60,000 Dragon longsword (m) 1 1/13,173.07–1/10,703.12 57,549 60,000 Off-hand dragon longsword (m) 1 1/13,173.07–1/10,703.12 57,282 60,000 Molten glass (m) 45–55 (noted) 1/2,048; 0 15,615–19,085 45–55 Runite stone spirit (m) 27–33 1/2,048; 1/1,920; 0 51,651–63,129 N/A Raw lobster (m) 135–165 (noted) 1/2,048–1/1,792; 0 33,480–40,920 22,950–28,050 Shield left half (m) 1 1/65,536–1/53,248 69,131 66,000 Dragon spear (m) 1 1/37,449.14–1/30,427.43 34,323 37,440 Huge plated rune salvage 18–22 (noted) 1/87,381.33–1/70,997.33 674,946–824,934 720,000–880,000 Yew logs 675–825 (noted) 1/65,536–1/53,248 434,025–530,475 64,800–79,200 Super restore (4) (m) 45–55 (noted) 1/43,690.67–1/35,498.67 122,670–149,930 8,100–9,900 Prayer potion (4) 45–55 (noted) 1/43,690.67–1/35,498.67 316,170–386,430 5,130–6,270 Raw rocktail (m) 180–220 (noted) 1/52,428.8–1/42,598.4 158,580–193,820 64,800–79,200 Mahogany plank (m) 270–330 (noted) 1/87,381.33–1/70,997.33 236,790–289,410 243,000–297,000 Magic seed (m) 3–5 1/131,072–1/106,496 78,765–131,275 759–1,265 Water talisman 68–82 (noted) 1/163,840–1/133,120 49,232–59,368 136–164 Battlestaff (m) 180–220 (noted) 1/163,840–1/133,120 709,200–866,800 756,000–924,000 Hardened dragon bones (m) 45–55 (noted) 1/131,072–1/106,496 561,015–685,685 45–55 Onyx bolt tips (m) 135–165 1/163,840–1/133,120 834,840–1,020,360 729,000–891,000 Ciku seed (m) 1 1/163,840–1/133,120 40,059 300 Golden dragonfruit seed (m) 13–17 1/87,381.33–1/70,997.33 28,444–37,196 3,900–5,100 Uncut diamond 45–55 (noted) 1/52,428.8–1/42,598.4 39,285–48,015 5,400–6,600 Uncut dragonstone (m) 45–55 (noted) 1/131,072–1/106,496 239,310–292,490 27,000–33,000 Soul rune (m) 450–550 1/163,840–1/133,120 282,600–345,400 36,900–45,100 Light animica stone spirit (m) 270–330 1/65,536–1/53,248 146,070–178,530 N/A Dark animica stone spirit (m) 270–330 1/65,536–1/53,248 139,590–170,610 N/A Primal stone spirit (m) 90–150 1/62,415.24–1/50,712.38 1,721,970–2,869,950 N/A Crystal key (m) 9–11 (noted) 1/21,845.33–1/17,749.33 147,915–180,785 9–11 White berries (m) 67–85 (noted) 1/87,381.33–1/70,997.33 124,955–158,525 402–510 Ectoplasm (m) 270–330 1/65,536–1/53,248 457,110–558,690 1,620–1,980 Medium spiky orikalkum salvage (m) 3–5 (noted) 1/65,536–1/53,248 217,224–362,040 225,000–375,000 Large blunt necronium salvage (m) 2 (noted) 1/87,381.33–1/70,997.33 644,388 650,000 Wine of Saradomin (m) 13–17 (noted) 1/163,840–1/133,120 499,161–652,749 13–17 Aura refresh (m) 1 1/52,428.8–1/42,598.4 Not sold N/A Distraction & Diversion reset token (daily) (m) 1 1/131,072–1/106,496 Not sold N/A Distraction & Diversion reset token (weekly) (m) 1 1/131,072–1/106,496 Not sold N/A Distraction & Diversion reset token (monthly) (m) 1 1/131,072–1/106,496 Not sold N/A Vecna skull (m) 1 1/133,120; 0 467,938 6,000 Cheese+tom batta (m) 1 ~1/1,310,720–1/1,146,880; 0 728 1 Blurberry Special (m) 1 ~1/1,183,288.89; 0 45,087 18 Hazelmere's signet ring (m) 1 ~1/10,649,600; 0 6,344,705,771 300,000

Tertiary

	Item	Quantity	Rarity	GE price	High Alch
	Heart of the Archer	1	1/200	2,484,551	6,000
	Heart of the Berserker	1	1/200	119,065	6,000
	Savage spear tip	1	1/500	1,044,838	3,000
	Savage spear cap	1	1/500	1,135,456	30,000
	Savage plume	1	1/500	1,061,248	30,000
	Savage spear shaft	1	1/500	1,202,927	30,000
	Skeka's hypnowand focus	1	7/5,000–7/4,850	2,010,212	120,000
	Skeka's hypnowand projector	1	1/5,000–1/4,850	10,450,974	120,000
	Skeka's hypnowand handle	1	1/5,000–1/4,850	11,445,413	120,000
	Skeka's hypnowand base	1	1/5,000–1/4,850	7,869,205	120,000
	Corbicula rex (unchecked)	1	1/500	2,866,157	N/A
	Pristine Corbicula rex egg	1	1/2,000–10/2,000	Not sold	N/A
	Sealed clue scroll (hard)	1	~1/350	Not sold	N/A
	Sealed clue scroll (elite)	1	~1/850	Not sold	N/A

Universal drops

Universal drops are dropped by nearly every monster and skilling action outside of Daemonheim.

These items are dropped alongside main drops.

	Item	Quantity	Rarity	GE price	High Alch
	Key token	1	Rare	Not sold	N/A
	Mimic kill token (m)	1	1/10,000	81,923	N/A

Money making guide

The following money making guide is available for Rathis:

Method	Hourly profit	Skills	Other requirements
Killing Rex Matriarchs (Rathis)	5,757,824	90  recommended 90  recommended 96  for Binding contract (blood reaver) 106  recommended 95  89  recommended	None

Achievements

Rex Matriarchs achievements

Main article: Rex Matriarchs achievements

• Rex Matriarchs ( 0) – Defeat any of the Rex Matriarchs. (X/1)
• I Came In Like a Rex-ing Ball:
  • I Came In Like a Rex-ing Ball I ( 5) – Defeat any of the Rex Matriarchs. (X/5)
  • I Came In Like a Rex-ing Ball II ( 10, 2) – Defeat any of the Rex Matriarchs. (X/10)
  • I Came In Like a Rex-ing Ball III ( 5) – Defeat any of the Rex Matriarchs. (X/25)
  • I Came In Like a Rex-ing Ball IV ( 5) – Defeat any of the Rex Matriarchs. (X/50)
  • I Came In Like a Rex-ing Ball V ( 5) – Defeat any of the Rex Matriarchs. (X/75)
  • I Came In Like a Rex-ing Ball VI ( 5) – Defeat any of the Rex Matriarchs. (X/100)
• Feeling a Little Venomous Today ( 10, 2) – Defeat Rathis solo after stopping her from healing during her 'Poison absorption' attack.
• Extinction Event ( 15, 3) – Defeat the Rex Matriarchs, Pthentraken, Orikalka, and Rathis, all within 5 seconds of each other. Can only be completed in a solo instance.

Boss Pet

Main article: Boss Pets achievements

• Corbi ( 0) – Unlock the Corbi pet from the Corbi Rex Matriarch.

Boss Log

Main article: Boss Logs achievements

• Rex Flex ( 0) – Obtained a collection of unique drops from the Rex Matriarchs.
  • Heart of the Archer
  • Corbi

Gallery

• 

  Rathis wearing a Santa hat during Christmas.

Update history

This information has been compiled as part of the update history project. Some updates may not be included – see here for how to help out!

• hidden 11 September 2023 (Update):
  • The 50% combat experience reduction on bosses has been removed. Bosses now give 50 combat experience per 1,000 life points, like most other monsters in the game.

• patch 14 November 2022 (Update):
  • The following bosses will now drop Seeds rather than Noted Herbs:
    • Rex Matriarchs
    • Hard mode Graardor
    • Hard mode Zilyana
    • Hard mode K'ril Tsutsaroth
    • Hard mode Kree'arra

• update 7 November 2022 (Update):
  • Herb drops replaced with their seeds instead.

• patch 26 April 2021 (Update):
  • Affinity has been adjusted, increasing the Matriarchs' base chance to be struck in combat
  • Projectile speeds have been adjusted so damage should better line up with the projectile hitting the player
  • Slayer XP has been increased
  • Combat XP has been reduced
  • Shards can now be correctly combined into Hearts
  • Rare drops from Rex Matriarchs will now consistently trigger a broadcast

• hotfix 26 April 2021 (Update):
  • The arena entrance has been adjusted to prevent it being used as a safe spot
    • This also resolves instances of low XP and/or no drops

• update 19 April 2021 (Update):
  • Added to game.
    • This week the Rex Matriarchs come roaring into the game with a new combat challenge for experienced fighters.
    • You'll go up against three respawning bosses. Each has a different strength to test your mettle, but also a different weakness to be exploited. Grind those kills and earn powerful rewards to boost your Combat playstyle, or maybe even get your hands on the iconic Laniakea's Spear - T90 damage / T75 accuracy is not to be sniffed at, plus, it'll give you 5% extra poison damage and +5% chance to apply poison when used. Veteran RuneScapers may recall classics such as Dagannoth Kings while new challengers will enjoy a brutal test of their combat mastery. Note that access to Anachronia is required to take on this challenge. So what are you waiting for? Grab your best gear and head to central Anachronia. The lair of the Rex Matriarchs awaits...

Trivia

• Rathis means "fireblood" in the dragonkin language.
• Rathis was scheduled to be released on 8 March 2021, but the Login Lockout delayed her release.