You touch a willing creature; their skin begins to rapidly grow into an array of varying corals. When you cast this spell, and at the start of your subsequent turns for the duration of the spell, the creature gains temporary hit points equal to 2d4 + your spellcasting ability modifier, as coral grows over their body, protecting them. Additionally, the creature deals an additional 1d4 slashing damage on all their unarmed strikes. When the spell ends the creature loses all (if any) temporary hit points provided by this spell.