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 |
|---|---|---|---|
| Tarnation Vista | Land | Tarnation Vista enters the battlefield tapped. As it enters, choose a color. {T}: Add one mana of the chosen color. {1}, {T}: For each color among monocolored permanents you control, add one mana of that color. | |
| Metropolis Sprite | 1U | Creature — Faerie Rogue | Flying {U}: Metropolis Sprite gets +1/-1 until end of turn. 1/2 |
| Neural Network | Artifact — Contraption | Whenever you crank Neural Network, gain control of target creature an opponent controls with power less than or equal to the number of creature cards in its controller's graveyard until end of turn. Untap that creature. It gains haste until end of turn. | |
| Dragon Breath | 1R | Enchantment — Aura | Enchant creature Enchanted creature has haste. {R}: Enchanted creature gets +1/+0 until end of turn. When a creature with mana value 6 or greater enters the battlefield, you may return Dragon Breath from your graveyard to the battlefield attached to that creature. |
| Ballroom | Land | Ballroom enters the battlefield tapped. {T}: Add {W} or {B}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Billiard Room | Land | Billiard Room enters the battlefield tapped. {T}: Add {B} or {R}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Conservatory | Land | Conservatory enters the battlefield tapped. {T}: Add {G} or {W}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Dining Room | Land | Dining Room enters the battlefield tapped. {T}: Add {R} or {G}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Hall | Land | Hall enters the battlefield tapped. {T}: Add {R} or {W}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Kitchen | Land | Kitchen enters the battlefield tapped. {T}: Add {G} or {U}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") |