While most trolls prefer to wear as minimal clothing as possible and rely on pure strength and their natural regeneration, Drarrik is armed to the teeth with armor and weapons. Wearing a specialized set of metal armor allowing for coverage and prefers to use actual weapons. Specifically a arm mounted longsword and arm mounted repeater crossbow. Allowing for covering both ranged and melee combat.
You call that a fire evocation? That is a tinderbox.
Of course Drarrik would not come without magical items to ensure increased survivability. Most notably he carries a ring of fire elemental command. Granting him immunity to fire damage, a fact he greatly enjoys. Alongside a headband of intelligence to ensure that he is smarter than standard trolls.