Derwen/Strategies

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Derwen is the Guthix mage arena guardian. Fighting and defeating him can earn you the Guthix staff and the Imbued guthix cape.

Requirements

Recommended: Prestige 3 Magic Level 99+ | Prestige 2-3 Defence Level 99+.

Getting there

Use the Portal nexus located north of spawn. Under bosses find Mage Arena.
Travel fee: 150k.

Mechanics

Derwen will hit with Melee. Use Protect from Melee.

• He will summon lightning which will then strike after a few ticks.
  • Move 1 tile; This attack hits in a checkerboard like pattern.
• Derwen will summon Derwimps that will make him invulnerable.
  • Use barrage spells to kill them easily.
    • A minion or two might be in the wall on the spawn, just move a few tiles and they should be fixed.
  • Standing 1 tile south-east of the statue is the best starting location to avoid derwimp wall spawns.

Recommended talents

The recommended combat style for Derwen is Magic.

Early Game TalentsEnd Game Talents

You won't need too many points to get this boss down. 101 points are used in this build.

Talents	Talents (Minimum Required)
Tier 1	Double Cast: 1/1 Deft Strikes: 5/5
Tier 2	Menacing Mage: 5/5 Elementalist: 5/5 Consistency: 5/5 Renewal 5/5
Tier 3	Draining Strikes: 5/5 Runic Effieciency: 5/5
Tier 4	Firebender: 5/5
Tier 5	Guardian: 1/1
Tier 6	N/A
Tier 7(Keystone)	N/A

For those who are in plenty supply of PVM talent points. Check out the early game talent points for the minimum and recommended talent build.

Talents	Talents
Tier 1	Double Cast: 1/1 Deft Strikes: 5/5
Tier 2	Menacing Mage: 5/5 Resilience I: 5/5 Elementalist: 5/5 Fortification: 5/5 Consistency: 5/5 Renewal 5/5 Bloodworm: 1/1
Tier 3	Unnatural Selection: 5/5 Porcupine: 5/5 Runic Efficiency: 5/5 Treasure goblin: 5/5 Holey Vestments: 5/5 Draining Strikes: 5/5
Tier 4	Firebender: 5/5 Resillience II: 5/5
Tier 5	Guardian: 1/1
Tier 6	N/A
Tier 7(Keystone)	N/A

Equipment

Slayer helmet (i) and other cosmetic variants
Slayer helmet (i) provides a Strength and accuracy bonus to all styles on slayer task, Derwen is considered a Ent.

MagicSpec Weapons

Gear	Item (Most effective → least effective)
Helmet	Slayer helmet (i)	Poseidon's crown3	Slayer helmet	Dagon'hai hat	Black mask	Gem armour (Ruby-Dragonstone)
Amulet	Occult necklace (or)4	Occult necklace	Amulet of bloodfury	Amulet of fury	Amulet of glory	Amulet of magic
Cape	Completionist cape	Cape of the seas	Imbued god capes	God cape	-	-
Body	Poseidon's brassard	Dagon'hai robe top	Gem armour (Ruby through Dragonstone)	Infinity top	-	-
Legs	Poseidon's tassets	Dagon'hai robe bottom	Gem armour (Ruby through Dragonstone)	Infinity bottoms	-	-
Gloves	Tormented bracelet (or)	Tormented bracelet	Infinity gloves	Barrows gloves	-	-
Boots	Talaria	Eternal boots	Infinity boots	-	-	-
Ring	Seers ring	Ring of stone	-	-	-	-
Offhand	Elidinis ward (or)	Elidinis' ward (f)	Arcane spirit shield	Elidinis' ward	Catalytic tomes	Elemental tomes
Weapon	Kodai wand1 Tumeken's shadow	Master wand1 Toxic staff of the dead2	Beginner wand Gem staves (ruby through dragonstone)	Ancient staff	-	-

Weapon	Item (No specific order)
Magic	Poseidon's trident	Zamorak staff	-	-	-

¹ used to prioritize ancients for utility.
² used to prioritize healing.
³used with set bonus.
⁴If using end-game berserker you can use the regular occult.