Worn Powerstone (Borderless) [The Lost Caverns of Ixalan Commander] Bird instead return target nonland permanent

instead return target nonland permanent an opponent controls to its owner's hand

these slivers have proven unruly—they know they cannot be caught

1x Contagion Engine

Set: The List Type: Enchantment Rarity: Uncommon Cost: {2}{R} Whenever a player taps a land for mana

Each player antes the top card of their library

Worn Powerstone (Borderless) [The Lost Caverns of Ixalan Commander] Bird instead return target nonland permanentSet: The Lost Caverns of Ixalan Commander Type: Artifact Rarity: Uncommon Cost: {3} Worn Powerstone enters the battlefield tapped. {T}: Add {C}{C}. "The strange energy source isn't cosmium after all, but some unidentifiable material that has leached cosmium residue from the walls. Could be dangerous. Could change everything." Oltec archaeological survey