Ribcage Gladiator

Deathtouch
Whenever a creature dies, if it had power greater than Ribcage Gladiator's, it's controller draws a card, then discards a card. Then put a +1/+1 counter on Ribcage Gladiator.

When Ribcage Gladiator dies, you may pay {x}, where X is half it's power rounded up. If you do, return Ribcage Gladiator to the battlefield tapped.

Counters remain on Ribcage Gladiator as it moves to any zone other than a player's hand or library