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 |
|---|---|---|---|
| Eyes of the Beholder | 4BB | Instant | Target creature gets -11/-11 until end of turn. |
| Hagra Sharpshooter | 2B | Creature — Human Assassin Ally | {4}{B}: Target creature gets -1/-1 until end of turn. 2/2 |
| Festering Goblin | B | Creature — Zombie Goblin | When Festering Goblin dies, target creature gets -1/-1 until end of turn. 1/1 |
| Supersize | 1G | Instant | Target creature gets +3½/+3½ until end of turn. |
| Irradiate | 3B | Instant | Target creature gets -1/-1 until end of turn for each artifact you control. |
| Okina, Temple to the Grandfathers | Legendary Land | {T}: Add {G}. {G}, {T}: Target legendary creature gets +1/+1 until end of turn. | |
| Mirari's Wake | 3GW | Enchantment | Creatures you control get +1/+1. Whenever you tap a land for mana, add one mana of any type that land produced. |
| Belbe's Armor | 3 | Artifact | {X}, {T}: Target creature gets -X/+X until end of turn. |
| Fleshformer | 2B | Creature — Human Wizard | {W}{U}{B}{R}{G}: Fleshformer gets +2/+2 and gains fear until end of turn. Target creature gets -2/-2 until end of turn. Activate only during your turn. (A creature with fear can't be blocked except by artifact creatures and/or black creatures.) 2/2 |
| Nightshade Seer | 3B | Creature — Human Wizard | {2}{B}, {T}: Reveal any number of black cards in your hand. Target creature gets -X/-X until end of turn, where X is the number of cards revealed this way. 1/1 |