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 |
|---|---|---|---|
| Mire's Toll | B | Sorcery | Target player reveals a number of cards from their hand equal to the number of Swamps you control. You choose one of them. That player discards that card. |
| Coral Helm | 3 | Artifact | {3}, Discard a card at random: Target creature gets +2/+2 until end of turn. |
| Llanowar Behemoth | 3GG | Creature — Elemental | Tap an untapped creature you control: Llanowar Behemoth gets +1/+1 until end of turn. 4/4 |
| Velican Dragon | 5RR | Creature — Dragon | Flying Whenever Velican Dragon attacks or blocks, it gets +X/+0 until end of turn, where X is a number from 0 to 5 chosen at random. 5/5 |
| Assault Suit | 4 | Artifact — Equipment | Equipped creature gets +2/+2, has haste, can't attack you or planeswalkers you control, and can't be sacrificed. At the beginning of each opponent's upkeep, you may have that player gain control of equipped creature until end of turn. If you do, untap it. Equip {3} |
| Eye of Ojer Taq | 3 | Artifact | {T}: Add one mana of any color. Craft with two that share a card type {6} ({6}, Exile this artifact, Exile the two from among other permanents you control and/or cards from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.) |
| Strength of Night | 2G | Instant | Kicker {B} (You may pay an additional {B} as you cast this spell.) Creatures you control get +1/+1 until end of turn. If this spell was kicked, Zombie creatures you control get an additional +2/+2 until end of turn. |
| Nighthowler | 1BB | Enchantment Creature — Horror | Bestow {2}{B}{B} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.) Nighthowler and enchanted creature each get +X/+X, where X is the number of creature cards in all graveyards. 0/0 |
| Magma Sliver | 3R | Creature — Sliver | All Slivers have "{T}: Target Sliver creature gets +X/+0 until end of turn, where X is the number of Slivers on the battlefield." 3/3 |
| Typhoon | 2G | Sorcery | Typhoon deals damage to each opponent equal to the number of Islands that player controls. |