Jdar, Protector of Good

Vigilance, Menace, Defender
{2}{b}{b}, Sacrifice a white creature: Jdar, Protector of Good loses defender.
{1}{w}, Sacrifice a black creature: Jdar, Protector of Good gains lifeline until end of turn.
When Jdar, Protector of Good deals combat damage to a creature, player, or planeswalker, it gains defender at the beginning of your next end step.
Vengeance and confidence are the keys to victory.