Frieren, Spell Collector

Frieren, Spell Collector gets +1/+1 for each instant, sorcery, and/or enchantment card in your graveyard.

Whenever you cast an instant or sorcery spell, other creatures you control get +1/+1 until end of turn.

Whenever an opponent casts an instant or sorcery spell, copy that spell. You may choose new targets
for the copy.