M:tG card similarity search
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.
| Name | Mana | Type | Text |
|---|---|---|---|
| Karlov Watchdog | 3W | Creature — Dog | Vigilance Permanents your opponents control can't be turned face up during your turn. Whenever you attack with three or more creatures, creatures you control get +1/+1 until end of turn. 3/2 |
| Vraska, the Silencer | 1BG | Legendary Creature — Gorgon Assassin | Deathtouch Whenever a nontoken creature an opponent controls dies, you may pay {1}. If you do, return that card to the battlefield tapped under your control. It's a Treasure artifact with "{T}, Sacrifice this artifact: Add one mana of any color," and it loses all other card types. 3/3 |
| Sumala Rumblers | 2G/WG/W | Creature — Wurm | Sumala Rumblers's power is equal to the number of creatures you control. Myriad (Whenever this creature attacks, for each opponent other than defending player, you may create a token that's a copy of this creature that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.) */4 |
| Plague Mare | 1BB | Creature — Nightmare Horse | Plague Mare can't be blocked by white creatures. When Plague Mare enters the battlefield, creatures your opponents control get -1/-1 until end of turn. 2/2 |
| Improvised Armor | 3W | Enchantment — Aura | Enchant creature Enchanted creature gets +2/+5. Cycling {3} ({3}, Discard this card: Draw a card.) |
| Pestilence Rats | 2B | Creature — Rat | Pestilence Rats's power is equal to the number of other Rats on the battlefield. (For example, as long as there are two other Rats on the battlefield, Pestilence Rats's power and toughness are 2/3.) */3 |
| Gristle Grinner | 4B | Creature — Zombie | Whenever a creature dies, Gristle Grinner gets +2/+2 until end of turn. 3/3 |
| Kharasha Foothills | Plane — Mongseng | Whenever a creature you control attacks a player, for each other opponent, you may create a token that's a copy of that creature, tapped and attacking that opponent. Exile those tokens at the beginning of the next end step. Whenever chaos ensues, you may sacrifice any number of creatures. If you do, Kharasha Foothills deals that much damage to target creature. | |
| Splinterfright | 2G | Creature — Elemental | Trample Splinterfright's power and toughness are each equal to the number of creature cards in your graveyard. At the beginning of your upkeep, mill two cards. */* |
| Exert Influence | 4U | Sorcery | Converge — Gain control of target creature if its power is less than or equal to the number of colors of mana spent to cast this spell. |