| Set | Date | Rarity | Treatment |
|---|---|---|---|
| ULST #59 | 2022-10-07 | Rare | Standard |
| UST #155 | 2017-12-08 | Rare | Standard |
| UST #155 | 2017-12-08 | Rare | Standard |
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.