Orpheon Katakros

Other Ossiarch creatures you control gain +1/+2 and Vigilance

Orpheon Katakros gains X +1/+1 Counters where X is the number of Enchantments attached to Orpheon Katakros

When Orpheon Katakros would be removed from the battlefield you may sacrifice an enchantment attached to him. if you do, do not remove him from the battlefield