Obsidian Shard

Obsidian Shard is a Dragonknight Class Ability, found in the Earthen Heart Skill Line.

Obsidian Shard
4050 Instant Cast Target: Enemy Base Skill: Stonefist
Slam an enemy with molten rock, dealing 448 Flame Damage and causing the rock to explode, splashing magma around. You then pull back on the magma to heal yourself or up to 2 allies near the enemy for 3240 Health.

Obsidian Shard is a morph of the Stonefist base skill. The other morph is Stone Giant.