Hard to pull off

Trample At the beginning of your upkeep, sacrifice this creature unless you sacrifice an enchantment.

, : Return target enchantment card from your graveyard to your hand.

Enchant creature When this Aura enters, put six +1/+1 counters on enchanted creature. At the beginning of your upkeep, put a +1/+1 counter on enchanted creature if it attacked or blocked since your last upkeep. Otherwise, remove a +1/+1 counter from it.