Blood Contract

Pay 3 life: Gain control of Blood Contract from
its owner. Any player may activate this ability.
You may not attack Blood Contract's owner.
Whenever you deal damage to an opponent, you
gain a number of favors equal to half the damage dealt, rounded up. Once you have accumulated
six favors in this manner, Blood Contract's
owner regains control of it.
"I prefer blood signatures over ink." -Silumgar