Eugeo's Memory of Ice

Icy roses, thorns, and vines sprout from the ground in a 60-foot sphere starting from a point within range. For the duration, these plants turn the ground in the area into difficult terrain.

When you cast this spell, you can designate any number of creatures you can see to be unaffected by it. When the creature enters the area for the first time on a turn or starts its turn there, it must make a Dexterity saving throw or be restrained. On a failed save, the creature takes 4d6 cold damage. On a successful save, the creature takes half as much damage and frees itself.

When the spell ends, the conjured plants melt away.