D&D Beyond Drops
Level 2 Abjuration (Artificer, Druid, Ranger)
Casting Time: Action
Range: Touch
Components: V, S
Duration: Concentration, up to 1 minute
You touch a willing creature. Until the spell ends, the target’s skin hardens into a tortoise shell while it remains in place, and the target gains a +3 bonus to AC. If the target moves using its action, Bonus Action, Reaction, or movement, the bonus becomes +1 instead until the start of its next turn.