Herald of Secret Streams [The Lost Caverns of Ixalan Commander] Sliver Army return it to the battlefield

return it to the battlefield converted under its owner's control

Set: Hour of Devastation Prerelease Promos Type: Sorcery Rarity: Rare Cost: {3}{W}{W}{W} This spell costs {3} less to cast if there are ten or more nonland permanents on the battlefield

• Return target nonland permanent to its owner's hand

Set: Innistrad: Double Feature Type: Enchantment Rarity: Mythic Cost: {3}{U} Whenever a nontoken Zombie enters the battlefield under your control

Herald of Secret Streams [The Lost Caverns of Ixalan Commander] Sliver Army return it to the battlefieldSet: The Lost Caverns of Ixalan Commander Type: Creature Merfolk Warrior Rarity: Rare Cost: {3}{U} Creatures you control with +1 +1 counters on them can't be blocked. "You might as well try to stop the waterfall."