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 |
|---|---|---|---|
| Umezawa's Charm | 1B | Instant | Choose one — • Target creature gets +2/+2 until end of turn. • Target creature gets -1/-1 until end of turn. • You gain 2 life. |
| Obosh, the Preypiercer | 3B/RB/R | Legendary Creature — Hellion Horror | Companion — Your starting deck contains only cards with odd mana values and land cards. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) If a source you control with an odd mana value would deal damage to a permanent or player, it deals double that damage to that permanent or player instead. 3/5 |
| A-Jade Orb of Dragonkind | 2G | Artifact | {T}: Add one mana of any color. When you spend this mana to cast a Dragon creature spell, it enters the battlefield with an additional +1/+1 counter on it and gains hexproof until your next turn. |
| Morgul-Knife Wound | 1B | Enchantment — Aura | Enchant creature Enchanted creature gets -3/-0 and has "At the beginning of your upkeep, exile this creature unless you pay 2 life." |
| Slicer, Hired Muscle | 4R | Legendary Artifact Creature — Robot | More Than Meets the Eye {2}{R} (You may cast this card converted for {2}{R}.) Double strike, haste At the beginning of each opponent's upkeep, you may have that player gain control of Slicer until end of turn. If you do, untap Slicer, goad it, and it can't be sacrificed this turn. If you don't, convert it. 3/4 |
| Apocalypse Demon | 4BB | Creature — Demon | Flying Apocalypse Demon's power and toughness are each equal to the number of cards in your graveyard. At the beginning of your upkeep, tap Apocalypse Demon unless you sacrifice another creature. */* |
| Anaba Ancestor | 1R | Creature — Minotaur Spirit | {T}: Another target Minotaur creature gets +1/+1 until end of turn. 1/1 |
| Deepwater Hypnotist | 1U | Creature — Merfolk Wizard | Inspired — Whenever Deepwater Hypnotist becomes untapped, target creature an opponent controls gets -3/-0 until end of turn. 2/1 |
| Frostburn Weird | U/RU/R | Creature — Weird | {U/R}: Frostburn Weird gets +1/-1 until end of turn. 1/4 |
| Child of Thorns | G | Creature — Spirit | Sacrifice Child of Thorns: Target creature gets +1/+1 until end of turn. 1/1 |