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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
Forger's Foundry 2UArtifact {T}: Add {U}. When you spend this mana to cast an instant or sorcery spell with mana value 3 or less, you may exile that spell instead of putting it into its owner's graveyard as it resolves. {3}{U}{U}, {T}: You may cast any number of spells from among cards exiled with Forger's Foundry without paying their mana costs. Activate only as a sorcery.
Keeper of the Sacred Word 2GCreature — Human Druid As Keeper of the Sacred Word enters the battlefield, choose a word. Whenever an opponent says the chosen word, Keeper of the Sacred Word gets +3/+3 until end of turn. 2/3
Battle Cry Goblin 1RCreature — Goblin {1}{R}: Goblins you control get +1/+0 and gain haste until end of turn. Pack tactics — Whenever Battle Cry Goblin attacks, if you attacked with creatures with total power 6 or greater this combat, create a 1/1 red Goblin creature token that's tapped and attacking. 2/2
Beastcaller Savant 1GCreature — Elf Shaman Ally Haste {T}: Add one mana of any color. Spend this mana only to cast a creature spell. 1/1
Goblin Blast-Runner RCreature — Goblin Goblin Blast-Runner gets +2/+0 and has menace as long as you sacrificed a permanent this turn. 1/2
Flowstone Hellion 4RCreature — Hellion Beast Haste {0}: Flowstone Hellion gets +1/-1 until end of turn. 3/3
Unlawful Entry 1UInstant Target creature gets +1/+0 and gains flying until end of turn. Whenever you put an art sticker on a creature, you may return Unlawful Entry from your graveyard to your hand.
Mwonvuli Ooze GCreature — Ooze Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay {2} for each age counter on it.) Mwonvuli Ooze's power and toughness are each equal to 1 plus twice the number of age counters on it. 1+*/1+*
Crypt Ripper 2BBCreature — Shade Haste {B}: Crypt Ripper gets +1/+1 until end of turn. 2/2
Kamachal, Ship's Mascot 2RLegendary Creature — Dinosaur Pirate Menace {R}: Kamachal, Ship's Mascot gets +1/+0 until end of turn. Whenever Kamachal deals combat damage to a player, create a Treasure token. Then exile from that player's library a random card with mana value equal to the damage dealt. You may cast that card this turn. 2/2
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