MTG >Combos >Cloudstone Curio +Miirym, Sentinel Wyrm +Reckless Barbarian +

With Myriim and Cloudstone Curio in play, cast Reckless Barbarian Myriim will create a copy of Reckless Barbarian Cloudstone Curio will trigger, return the original Reckless Barbarian to your hand Sacrifice the copy to add two mana and repeat the process.