Unstable · #155
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Whenever an opponent casts a spell, you have five seconds to choose a keyword you haven't chosen for a card named Modular Monstrosity today that's been printed on a creature card. If you do, this creature gains that ability. Otherwise, this creature loses all keyword abilities.
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Modular Monstrosity (UST 155, foil) is an artifact creature Construct from the Unstable set. It can temporarily gain a keyword ability whenever an opponent casts a spell, provided you pick a keyword not already chosen that day for any card named Modular Monstrosity, otherwise it loses all keywords. The choice window is time‑limited (five seconds) and restricted to keywords that have been printed on creature cards with any required modifiers exactly as printed.
Catalog pricing data as of 22 Apr 2026, 15:47
