Cartouche of Endurance

When Cartouche of Endurance enters the battlefield, you may put a number of -1/-1
counters on enchanted creature equal to the
number of opponents you have. If you do, each opponent sacrifices a creature.
Enchanted creature gets +1/+1 and has
Hexproof.
In the days before Bolas, Cartouches were rare tokens,
only bestowed on the most worthy of champions.