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'Each spell you cast that's red or green costs {1} less to cast.
'Say "Goblin S.W.A.T. Team": Put a +1/+1 counter on this creature unless an opponent swats the table within five seconds. Activate only once each turn.
'Menace (This creature can't be blocked except by two or more creatures.) When this creature enters, you may cast target instant or sorcery card with mana value 3 or less...
'At the beginning of your upkeep, discard a card, then create a Treasure token. Mayhem {2}{B/R} (You may cast this card from your graveyard for {2}{B/R} if you discarded it...
'When this creature enters, you may search your library for an artifact card, put it into your graveyard, then shuffle. {R}, {T}, Sacrifice an artifact: Return target artifact card with...
'When this creature enters, you may put a name sticker on it. Add {R} for each unique vowel on that sticker. (The vowels are A, E, I, O, U, and...
'Riot (This creature enters with your choice of a +1/+1 counter or haste.)
'Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)
'Sacrifice this artifact: Flip a coin. If you win the flip, this artifact deals damage to target opponent or planeswalker equal to the number of creatures you control. If you...
'As long as you control an artifact, this creature gets +1/+0 and has haste.
'When this creature dies, destroy target land.
'Whenever this creature attacks and isn't blocked, you may pay {R}. If you do, destroy target artifact defending player controls and this creature assigns no combat damage this turn.