Arvinox, the Mind Flail Scryfall ID_90f8de01-c1bd-4533-9e98-61e7d25dcf88 When Symbiotic Wurm dies

When Symbiotic Wurm dies

When Geralf's Mindcrusher enters the battlefield

Whether or not their plan will work out

if you control no untapped lands

Whenever Keldon Flamesage attacks

Arvinox, the Mind Flail Scryfall ID_90f8de01-c1bd-4533-9e98-61e7d25dcf88 When Symbiotic Wurm diesArvinox, the Mind Flail Legendary Enchantment Creature Horror Arvinox, the Mind Flail isn't a creature unless you control three or more permanents you don't own. At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells. Set: