Aid from the Cowl (MOC 290)

Enchantment • Mana cost: {3}{G}{G} • March of the Machine Commander • Rare

Revolt — At the beginning of your end step, if a permanent left the battlefield under your control this turn, reveal the top card of your library. If it's a permanent card, you may put it onto the battlefield. Otherwise, you may put it on the bottom of your library.

Illustrated by Viktor Titov.