Inien

When you discard a card, Inien gains +0/+1 until your next upkeep phase.
{w/u}: Draw a card. If it's an instant or sorcery you may cast it during you turn without paying it's mana cost. Discard a card
{2}{p/b}{p/u}: Discard a card; Sacrifice X creatures and deal X damage to target creature or player where X is the discarded card's mana cost