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Released8 February 2018 (Update)
Combat level235
ExamineAn ancient Guthixian Ent.
Combat info
XP bonus+20%
Max hit43 (magic)
16 (melee)
Attack styleMagic, Crush
Attack speedMonster attack speed 6.png
Combat icon.png Combat stats
Hitpoints icon.pngAttack icon.pngStrength icon.pngDefence icon.pngMagic icon.pngRanged icon.png
Attack icon.png Aggressive stats
Monster attack bonusMonster strength bonusMagic icon.pngMonster magic strength bonusRanged icon.pngMonster ranged strength bonus
Defence icon.png Defensive stats
White dagger.pngWhite scimitar.pngWhite warhammer.pngMagic icon.pngRanged icon.png
Advanced data
Monster ID7513,7859

Derwen is an ancient servant of Guthix, who takes great interest in Justiciar Zachariah and Porazdir, attempting to keep a balance between them.[1] He has to be defeated in order to obtain the ent's roots for Kolodion's spell during Mage Arena II miniquest. In order to summon him, players have to use an enchanted symbol to locate him, similar to using an enchanted key or strange device.

A player fighting Derwen.

When fighting Derwen, he can use a special attack which will release multiple balls of energy in the area around him. These balls of energy will heal Derwen for five Hitpoints every few seconds. They can be destroyed by the player, having 20 hitpoints each. He can also teleblock the player for one minute.

Derwen can only be harmed by the Claws of Guthix spell. As such, a Guthix staff, a staff of balance, or the void knight mace is required to defeat him. Despite being referred to as an ent, killing Derwen will not count towards an ent slayer task from Krystillia.

Drops[edit | edit source]

100%[edit | edit source]

Item Quantity Rarity Price High Alch
Ent's roots.png: Derwen drops Ent's roots with rarity Always in quantity 1Ent's roots1AlwaysNot sold8

Tertiary[edit | edit source]

Item Quantity Rarity Price High Alch
Looting bag.png: Derwen drops Looting bag with rarity 1/3 in quantity 1Looting bag11/3Not soldN/A

Trivia[edit | edit source]

  • The word "Derwen" means "oak tree" in Welsh.

References[edit | edit source]

  1. ^ "Kolodion", Old School RuneScape. "[Derwen] seems to take great interest in the other two creatures. Maybe he is trying to keep a balance between them."