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 |
|---|---|---|---|
| Public Execution | 5B | Instant | Destroy target creature an opponent controls. Each other creature that player controls gets -2/-0 until end of turn. |
| Havoc Sower | 3B | Creature — Eldrazi Drone | Devoid (This card has no color.) {1}{C}: Havoc Sower gets +2/+1 until end of turn. ({C} represents colorless mana.) 3/3 |
| Restless Prairie | Land | Restless Prairie enters the battlefield tapped. {T}: Add {G} or {W}. {2}{G}{W}: Restless Prairie becomes a 3/3 green and white Llama creature until end of turn. It's still a land. Whenever Restless Prairie attacks, other creatures you control get +1/+1 until end of turn. | |
| Balance | 1W | Sorcery | Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way. |
| Blinkmoth Well | Land | {T}: Add {C}. {2}, {T}: Tap target noncreature artifact. | |
| Robobrain War Mind | 3U | Artifact Creature — Robot | Robobrain War Mind's power is equal to the number of cards in your hand. When Robobrain War Mind enters the battlefield, you get an amount of {E} (energy counters) equal to the number of artifact creatures you control. Whenever Robobrain War Mind attacks, you may pay {E}{E}{E}. If you do, draw a card. */5 |
| Homura's Essence | Legendary Enchantment | Creatures you control get +2/+2 and have flying and "{R}: This creature gets +1/+0 until end of turn." | |
| Castle Garenbrig | Land | Castle Garenbrig enters the battlefield tapped unless you control a Forest. {T}: Add {G}. {2}{G}{G}, {T}: Add six {G}. Spend this mana only to cast creature spells or activate abilities of creatures. | |
| Overwhelm | 5GG | Sorcery | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Creatures you control get +3/+3 until end of turn. |
| Invincible Hymn | 6WW | Sorcery | Count the number of cards in your library. Your life total becomes that number. |