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 |
|---|---|---|---|
| Sokenzan Spellblade | 4R | Creature — Ogre Samurai Shaman | Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.) {1}{R}: Sokenzan Spellblade gets +X/+0 until end of turn, where X is the number of cards in your hand. 2/3 |
| Plague Witch | 1B | Creature — Elf Spellshaper | {B}, {T}, Discard a card: Target creature gets -1/-1 until end of turn. 1/1 |
| Aerial Formation | U | Instant | Strive — This spell costs {2}{U} more to cast for each target beyond the first. Any number of target creatures each get +1/+1 and gain flying until end of turn. |
| Void | 3BR | Sorcery | Choose a number. Destroy all artifacts and creatures with mana value equal to that number. Then target player reveals their hand and discards all nonland cards with mana value equal to the number. |
| Defensive Maneuvers | 3W | Instant | Creatures of the creature type of your choice get +0/+4 until end of turn. |
| Tribal Unity | X2G | Instant | Creatures of the creature type of your choice get +X/+X until end of turn. |
| Pulse of Llanowar | 3G | Enchantment | If a basic land you control is tapped for mana, it produces mana of a color of your choice instead of any other type. |
| Scuttling Death | 4B | Creature — Spirit | Sacrifice Scuttling Death: Target creature gets -1/-1 until end of turn. Soulshift 4 (When this creature dies, you may return target Spirit card with mana value 4 or less from your graveyard to your hand.) 4/2 |
| Crippling Fear | 2BB | Sorcery | Choose a creature type. Creatures that aren't of the chosen type get -3/-3 until end of turn. |
| False Dawn | 1W | Sorcery | Until end of turn, spells and abilities you control that would add colored mana instead add that much white mana. Until end of turn, you may spend white mana as though it were mana of any color. Draw a card. |