Ashiok, Dream Render (Stained Glass) [Secret Lair Drop Promos] Giant Cleric Set: Alpha Edition Type: Sorcery

Set: Alpha Edition Type: Sorcery Rarity: Rare Cost: {X}{U}{U}{U} Destroy X target Mountains

But the Ants seemed to disagree

If you sacrifice an Island this way

Set: Beta Edition Type: Sorcery Rarity: Rare Cost: {U}{U} Target player activates a mana ability of each land they control

though such a network tends to pull power from nearby devices

Ashiok, Dream Render (Stained Glass) [Secret Lair Drop Promos] Giant Cleric Set: Alpha Edition Type: SorcerySet: Secret Lair Drop Promos Type: Legendary Planeswalker Ashiok Rarity: Uncommon Cost: {1}{U B}{U B} Spells and abilities your opponents control can't cause their controller to search their library. 1: Target player mills four cards. Then exile each opponent's graveyard.