Maiden, the Vampire

Menace
Whenever Maiden deals combat damage to a player,
draw a card and discard a card. If the discarded card
was black, target opponent sacrifices a creature and gains
2 life. If the discarded card is Red, deal 3 damage to any target and gain 2 life.
Extrinsic squad - (extrinsic squad creatures are the
colours of your commander if your commander is an extrinsic squad creature)