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 |
|---|---|---|---|
| Sliver Hive | Land | {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Sliver spell. {5}, {T}: Create a 1/1 colorless Sliver creature token. Activate only if you control a Sliver. | |
| Emeria, the Sky Ruin | Land | Emeria, the Sky Ruin enters the battlefield tapped. At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield. {T}: Add {W}. | |
| Honor Guard | W | Creature — Human Soldier | {W}: Honor Guard gets +0/+1 until end of turn. 1/1 |
| Kjeldoran Outrider | 1W | Creature — Human Soldier | {W}: Kjeldoran Outrider gets +0/+1 until end of turn. 2/2 |
| Rainbow Knights | WW | Summon Knights | When Rainbow Knights comes into play, it gains protection from a random color permanently. {1}: First strike until end of turn. {W}{W}: +0/+0, +1/+0 or +2/+0 until end of turn chosen at random. 2/1 |
| Time Bomb | 4 | Artifact | At the beginning of your upkeep, put a time counter on Time Bomb. {1}, {T}, Sacrifice Time Bomb: Time Bomb deals damage equal to the number of time counters on it to each creature and each player. |
| Scattering Stroke | 2UU | Instant | Counter target spell. Clash with an opponent. If you win, at the beginning of your next main phase, you may add an amount of {C} equal to that spell's mana value. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.) |
| Dragonmaster Outcast | R | Creature — Human Shaman | At the beginning of your upkeep, if you control six or more lands, create a 5/5 red Dragon creature token with flying. 1/1 |
| Coiling Woodworm | 2G | Creature — Insect Worm | Coiling Woodworm's power is equal to the number of Forests on the battlefield. */1 |
| Paupers' Cage | 3 | Artifact | At the beginning of each opponent's upkeep, if that player has two or fewer cards in hand, Paupers' Cage deals 2 damage to that player. |