Witherbloom, the Balancer

Witherbloom, the Balancer is an 8cmc 5/5 flying, deathtouch Elder Dragon that costs {1} less for each creature you control, and also extends that affinity discount to every instant and sorcery you cast. This makes it a strong payoff in creature-dense BG midrange or aristocrats shells where a board of tokens or utility creatures both reduces its cost significantly and makes your interaction/draw spells cheaper. It's most at home in spellslinger-adjacent builds that also maintain a wide board, but the 8-mana base cost and dependency on creature count make it slow and creature-density-dependent.

• The passive affinity extension to instants and sorceries is uniquely powerful in shells that maintain a wide board — a full board of 6+ creatures can effectively make your Cultivates and removal spells cost 0, enabling explosive turns.

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• Unlike most cost reducers, Witherbloom's affinity applies to ALL instants and sorceries you cast (not just once per turn), so in a single-turn burst with multiple spells, every spell in that sequence benefits from the full creature count at the time of casting.

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• Because the discount is based on creatures you control at cast time, sacrifice outlets or board wipes before casting Witherbloom itself can dramatically inflate its effective mana cost — sequencing creatures before the Dragon is critical.

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• EDHREC rank: #8,773