Wood
This armor group splinters under a critical hit, driving shards back into the melee attacker who dealt that blow.
Wood armor is generally flexible and light, but it can splinter as it breaks, throwing off shards and fragments that damage foes who deal you critical blows. If a foe critically hits you with a melee unarmed attack or critically hits you with any melee attack while adjacent to you, it takes piercing damage equal to 3 + the armor's potency rune value for medium armor, or 5 + the armor's potency rune value for heavy armor.
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