Crown of Supremacy

Equip: {3}
Equipped creature gets +1/+1 and has:
• "{4}, {t}: Sacrifice another creature, then gain
control of target creature."
• "{5}, {t}: Sacrifice a creature and exile a number of
cards from any graveyard equal to the sacrificed
creatures power + toughness."
• "{6}, {t}: Sacrifice a creature and search the
opponents library for a number of cards equal to the
sacrificed creatures casting cost and exile them."