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 |
|---|---|---|---|
| Intelligence Bobblehead | 3 | Artifact — Bobblehead | {T}: Add one mana of any color. {5}, {T}: Draw X cards, where X is the number of Bobbleheads you control. |
| Plague Wight | 1B | Creature — Zombie | Whenever Plague Wight becomes blocked, each creature blocking it gets -1/-1 until end of turn. 2/1 |
| Chainflail Centipede | 2B | Artifact Creature — Equipment Insect | Whenever Chainflail Centipede or equipped creature attacks, it gets +2/+0 until end of turn. Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.) 2/2 |
| Soulshriek | B | Instant | Target creature you control gets +X/+0 until end of turn, where X is the number of creature cards in your graveyard. Sacrifice that creature at the beginning of the next end step. |
| Tyranid Invasion | 3G | Sorcery | Create a number of 3/3 green Tyranid Warrior creature tokens with trample equal to the number of opponents you have. |
| Free from Flesh | R | Instant | Target creature gets +2/+2 until end of turn. Put two oil counters on it. |
| Heartmender | 2G/WG/W | Creature — Elemental | At the beginning of your upkeep, remove a -1/-1 counter from each creature you control. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.) 2/2 |
| Burning Cloak | R | Sorcery | Target creature gets +2/+0 until end of turn. Burning Cloak deals 2 damage to that creature. |
| Karfell Kennel-Master | 4B | Creature — Zombie Berserker | When Karfell Kennel-Master enters the battlefield, up to two target creatures each get +1/+0 and gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.) 4/4 |
| Desolation | 1BB | Enchantment | At the beginning of each end step, each player who tapped a land for mana this turn sacrifices a land. Desolation deals 2 damage to each player who sacrificed a Plains this way. |