Attune/End attunement

You touch a common or uncommon magic item that requires attunement. If it isn't attuned to anyone, your attune to it. If it is attuned to someone, you end the attunement.

At higher levels. When you cast this spell using a 4th or higher level spell slot, you can also cast it on a rare or very rare magic item ; when you cast it using a 6th or higher level spell slot, you can also cast it on a legendary item or an artifact.