Milo, the Storm King

Whenever you cast a spell, put a 1/2 white and black Storm Apprentice creature token onto the battlefield.
{u/r}{u/r},{t}: The next instant or sorcery spell you cast this turn has storm.
When you cast as spell with storm, Storm Apprentice creatures you control gain +1/+0 for each time that spell is copied with storm until end of turn.