Valletha, Abyssal Archmage

Valletha costs {1} less to cast for each card type in
your graveyard.
Whenever a nontoken creature enters the battlefield from your graveyard, create a token
that's a copy of that creature.
Sacrifice a nontoken creature, Discard a card:
You may cast target instant or sorcery card from
your graveyard, if you do, exile it as it resolves.