You choose a target in range to construct an iron coffin around, shutting then inside with overlaying chains. The target must make a Constitution saving throw. On a failure, it is locked inside, stabbed with a thousand blades, and is magically dealt 5d12 piercing damage. The coffin turns to ash at the start of its next turn. The creature has total cover while entombed and is restrained for the duration of the spell. On a success, the creature takes half as much damage and the coffin immediately fades.
An undead that has advantage on saving throws against or is immune to the effects that turn undead have disadvantage on its saving throw against this spell.
At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d12 for each slot level above the 3rd.
* - (A handful of nails)
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