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Prototype {4}{U}{U} — 6/6 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) This creature doesn't untap during your untap step. {3}: Untap this creature.
Abilities, attacks, weakness & resistance
Other cards from The Brothers' War
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Depth Charge Colossus (BRO-78) is an artifact creature Dreadnought from The Brothers' War set. It has Prototype {4}{U}{U} allowing you to cast it as a 6/6 for that cost instead of its printed 9/9, and it enters with an effect that it doesn't untap during your untap step but can be untapped for {3}. Its design supports a heavy, color-shifted threat role where you can choose between the larger printed body or the cheaper prototyped version to fit different mana curves.
Catalog pricing data as of 26 Apr 2026, 09:43
