Sons of Fëanor, Oathbound

Haste
Kinslayer - Whenever this creature deals
combat damage to an opponent, each player
sacrifices a creature.
Whenever Sons of Feanor, Oathbound attacks it
gets +1/+0 and deals 1 damage to each player.
You may have up to seven copies of Sons of
Feanor, Oathbound in your deck.