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 |
|---|---|---|---|
| A-Urza's Command | 2UU | Instant | Choose two — • Creatures you don't control get -3/-0 until end of turn. • Create two tapped Powerstone tokens. • Create a tapped 0/0 colorless Construct artifact creature token with "This creature gets +1/+1 for each artifact you control." • Scry 2, then draw a card. |
| Apex Observatory | Artifact | Apex Observatory enters the battlefield tapped. As it enters, choose a card type shared among two exiled cards used to craft it. {T}: The next spell you cast this turn of the chosen type can be cast without paying its mana cost. | |
| Mizzium Tank | 1RR | Artifact — Vehicle | Trample Whenever you cast a noncreature spell, Mizzium Tank becomes an artifact creature and gets +1/+1 until end of turn. Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.) 3/2 |
| Massacre Wurm | 3BBB | Creature — Phyrexian Wurm | When Massacre Wurm enters the battlefield, creatures your opponents control get -2/-2 until end of turn. Whenever a creature an opponent controls dies, that player loses 2 life. 6/5 |
| Thornling | 3GG | Creature — Elemental Shapeshifter | {G}: Thornling gains haste until end of turn. {G}: Thornling gains trample until end of turn. {G}: Thornling gains indestructible until end of turn. {1}: Thornling gets +1/-1 until end of turn. {1}: Thornling gets -1/+1 until end of turn. 4/4 |
| Lavaspur Boots | 1 | Artifact — Equipment | Equipped creature gets +1/+0 and has haste and ward {1}. (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.) Equip {1} |
| Centaur Garden | Land | {T}: Add {G}. Centaur Garden deals 1 damage to you. Threshold — {G}, {T}, Sacrifice Centaur Garden: Target creature gets +3/+3 until end of turn. Activate only if seven or more cards are in your graveyard. | |
| Mistwalker | 2U | Creature — Shapeshifter | Changeling (This card is every creature type.) Flying {1}{U}: Mistwalker gets +1/-1 until end of turn. 1/4 |
| Delighted Halfling | G | Creature — Halfling Citizen | {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell, and that spell can't be countered. 1/2 |
| Greater Harvester | 2BBB | Creature — Horror | At the beginning of your upkeep, sacrifice a permanent. Whenever Greater Harvester deals combat damage to a player, that player sacrifices two permanents. 5/6 |