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17 May 2024: Card library updated.

Chaos Moon

3R · Enchantment

At the beginning of each upkeep, count the number of permanents. If the number is odd, until end of turn, red creatures get +1/+1 and whenever a player taps a Mountain for mana, that player adds an additional {R}. If the number is even, until end of turn, red creatures get -1/-1 and if a player taps a Mountain for mana, that Mountain produces colorless mana instead of any other type.

Similar cards

Color identity:
NameManaTypeText
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Agent of Shauku 1BCreature — Human Mercenary {1}{B}, Sacrifice a land: Target creature gets +2/+0 until end of turn. 1/1
Ominous Sphinx 3UUCreature — Sphinx Flying Whenever you cycle or discard a card, target creature an opponent controls gets -2/-0 until end of turn. 4/4
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Spontaneous Mutation UEnchantment — Aura Flash Enchant creature Enchanted creature gets -X/-0, where X is the number of cards in your graveyard.
Roar of Jukai 2GInstant — Arcane If you control a Forest, each blocked creature gets +2/+2 until end of turn. Splice onto Arcane—An opponent gains 5 life. (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
Arm the Cathars 1WWSorcery Until end of turn, target creature gets +3/+3, up to one other target creature gets +2/+2, and up to one other target creature gets +1/+1. Those creatures gain vigilance until end of turn.
Ardenn, Intrepid Archaeologist 2WLegendary Creature — Kor Scout At the beginning of combat on your turn, you may attach any number of Auras and Equipment you control to target permanent or player. Partner (You can have two commanders if both have partner.) 2/2
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