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 |
|---|---|---|---|
| Goblin Spymaster | 2R | Creature — Goblin Rogue | First strike At the beginning of each opponent's end step, that player creates a 1/1 red Goblin creature token with "Creatures you control attack each combat if able." 2/1 |
| Siege Modification | 1RR | Enchantment — Aura | Enchant creature or Vehicle As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types. Enchanted creature gets +3/+0 and has first strike. |
| Profit | 1W | Instant | Creatures you control get +1/+1 until end of turn. Fuse (You may cast one or both halves of this card from your hand.) |
| Exotic Orchard | Land | {T}: Add one mana of any color that a land an opponent controls could produce. | |
| Fellwar Stone | 2 | Artifact | {T}: Add one mana of any color that a land an opponent controls could produce. |
| Grim Draugr | 2B | Snow Creature — Zombie Berserker | {1}{S}: Grim Draugr gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures. {S} can be paid with one mana from a snow source.) 3/2 |
| Esper Battlemage | 2U | Artifact Creature — Human Wizard | {W}, {T}: Prevent the next 2 damage that would be dealt to you this turn. {B}, {T}: Target creature gets -1/-1 until end of turn. 2/2 |
| Squeaking Pie Grubfellows | 3B | Creature — Goblin Shaman | Kinship — At the beginning of your upkeep, you may look at the top card of your library. If it shares a creature type with Squeaking Pie Grubfellows, you may reveal it. If you do, each opponent discards a card. 3/2 |
| Monstrous Step | 4G | Sorcery | Target creature gets +7/+7 until end of turn. Up to one other target creature blocks it this turn if able. Cycling {2} ({2}, Discard this card: Draw a card.) |
| Corrupted Crossroads | Land | {T}: Add {C}. ({C} represents colorless mana.) {T}, Pay 1 life: Add one mana of any color. Spend this mana only to cast a spell with devoid. |