Regal Ancestor Spirit

Every time it is your turn, target opponent
loses 1 HP and you gain 1 HP. Regal Ancestor Spirit is tapped when cast.
{t}:{1}{b}{g}{g}: Everyone playing must sacrifice 1 creature card. You gain 2 HP for
every creature sacrificed if you are against
1 or 2 opponents, 2 HP against 3, 1 HP against
4-6.