X Spell

Scalable finishers whose mana cost includes {X}, letting the controller dump a large mana pool into a proportionally large effect: Fireball deals X damage, Exsanguinate drains X from each opponent, Genesis Wave dumps X mana value of permanents onto the battlefield, Villainous Wealth exiles and casts X cards from an opponent, and Walking Ballista enters with X +1/+1 counters. These cards are the natural payoff for big-mana decks because every extra mana translates directly into more damage, more cards, or more board. Overlaps with win_condition.damage_win for the burn/drain X-spells and is narrower in scope than that sibling, since this view keys on the {X} mana cost itself rather than the kill route. Distinct from win_condition.combat_win, which closes through mass pump rather than scaling mana, and from win_condition.alternate_win, which triggers a 'you win the game' line.