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 |
|---|---|---|---|
| Krallenhorde Killer | Creature — Werewolf | {3}{G}: Krallenhorde Killer gets +4/+4 until end of turn. Activate only once each turn. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Krallenhorde Killer. 2/2 | |
| Plaza of Heroes | Land | {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell. {T}: Add one mana of any color among legendary permanents you control. {3}, {T}, Exile Plaza of Heroes: Target legendary creature gains hexproof and indestructible until end of turn. | |
| Crowd Favorites | 6W | Creature — Human Soldier | {3}{W}: Tap target creature. {3}{W}: Crowd Favorites gets +0/+5 until end of turn. 4/4 |
| Goblin Elite Infantry | 1R | Creature — Goblin Warrior | Whenever Goblin Elite Infantry blocks or becomes blocked, it gets -1/-1 until end of turn. 2/2 |
| Scorchwalker | 3R | Creature — Elemental | Bloodrush — {1}{R}{R}, Discard Scorchwalker: Target attacking creature gets +5/+1 until end of turn. 5/1 |
| Mirkwood Channeler | 3G | Creature — Elf Druid | At the beginning of combat on your turn, target Elf you control gains trample and gets +X/+X until end of turn, where X is the number of Forests you control. 3/3 |
| Grim Physician | B | Creature — Zombie | When Grim Physician dies, target creature an opponent controls gets -1/-1 until end of turn. 1/1 |
| Common Cause | 2W | Enchantment | Nonartifact creatures get +2/+2 as long as they all share a color. |
| Mistform Stalker | 1U | Creature — Illusion | {1}: Mistform Stalker becomes the creature type of your choice until end of turn. {2}{U}{U}: Mistform Stalker gets +2/+2 and gains flying until end of turn. 1/1 |
| Cackling Witch | 1B | Creature — Human Spellshaper | {X}{B}, {T}, Discard a card: Target creature gets +X/+0 until end of turn. 1/1 |