Unesh, Criosphinx Sovereign [Hour of Devastation Prerelease Promos] Aura Curse He taught both boys to

He taught both boys to be strong and to lead

"This is a sacred duty

the controller of the permanent it becomes sacrifices it at the beginning of the next cleanup step

or triggered ability

Sacrifice a Rat: Create X 1/1 black Rat creature tokens

Unesh, Criosphinx Sovereign [Hour of Devastation Prerelease Promos] Aura Curse He taught both boys toSet: Hour of Devastation Prerelease Promos Type: Legendary Creature Sphinx Rarity: Mythic Cost: {4}{U}{U} Flying Sphinx spells you cast cost {2} less to cast. Whenever Unesh, Criosphinx Sovereign or another Sphinx enters the battlefield under your control, reveal the top four cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.