cards that mill mtg - All with Mill So I wanna make a

Oh, if only all of this came from a well-thought set all around

Whenever you cast an instant or sorcery spell or activate an ability, if that spell's mana cost or that ability's activation cost contains , copy that spell or ability

He also has a secondary ability that doesnt let him ready if the owner has three cards or more, but that shouldnt be a problem because of his initial passive

"It's best to let sleeping dragons lie", and the Elder Land Wurm can only attack after it's been blocked once

He's also a legendary creature for some reason, and I'm going to assume that Jalum is a member of the M:TG development team and this is a tribute to whoever Jalum is