Copycat

You point to a creature you can see within range and you copy whatever spell their casting and use it for yourself. The creature must succeed on a Wisdom saving throw or have the casting of their spell interrupted and stolen by yourself, if the creature fails the casting of their spell fails and you cast the spell yourself as long as the spell you stole is 5th level or below. (You can still cast the spell even if you normally can't).

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, you can steal and interrupt spells of the spell level cast and lower. For example: if cast at 8th level you can steal and interrupt spells of 8th level or below.