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 |
|---|---|---|---|
| Library | Land | Library enters the battlefield tapped. {T}: Add {U} or {R}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Lounge | Land | Lounge enters the battlefield tapped. {T}: Add {B} or {G}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Secret Passage | Land | Secret Passage enters the battlefield tapped. {T}: Add {U} or {B}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Study | Land | Study enters the battlefield tapped. {T}: Add {W} or {U}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") | |
| Tormentor's Helm | R | Artifact — Equipment | Equipped creature gets +1/+1. Whenever equipped creature becomes blocked, it deals 1 damage to defending player. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.) |
| Weaver of Lies | 5UU | Creature — Beast | Morph {4}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Weaver of Lies is turned face up, turn any number of target creatures with morph abilities other than Weaver of Lies face down. 4/4 |
| Amulet of Vigor | 1 | Artifact | Whenever a permanent enters the battlefield tapped and under your control, untap it. |
| Orochi Leafcaller | G | Creature — Snake Shaman | {G}: Add one mana of any color. 1/1 |
| Gruul Guildmage | R/GR/G | Creature — Human Shaman | ({R/G} can be paid with either {R} or {G}.) {3}{R}, Sacrifice a land: Gruul Guildmage deals 2 damage to target player or planeswalker. {3}{G}: Target creature gets +2/+2 until end of turn. 2/2 |
| Tolaria West | Land | Tolaria West enters the battlefield tapped. {T}: Add {U}. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with mana value 0, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.) |