M:tG card similarity search
5R · Creature — Beholder
Whenever a creature an opponent controls attacks one of your opponents, double its power until end of turn. {X}{X}{R}: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.) When Death Kiss becomes monstrous, goad up to X target creatures your opponents control. 5/5
| Name | Mana | Type | Text |
|---|---|---|---|
| Submerge | 4U | Instant | If an opponent controls a Forest and you control an Island, you may cast this spell without paying its mana cost. Put target creature on top of its owner's library. |
| Ancestor Dragon | 4WW | Creature — Dragon | Flying Whenever one or more creatures you control attack, you gain 1 life for each attacking creature. 5/6 |
| Aryel, Knight of Windgrace | 2WB | Legendary Creature — Human Knight | Vigilance {2}{W}, {T}: Create a 2/2 white Knight creature token with vigilance. {B}, {T}, Tap X untapped Knights you control: Destroy target creature with power X or less. 4/4 |
| Slavering Nulls | 1R | Creature — Goblin Zombie | Whenever Slavering Nulls deals combat damage to a player, if you control a Swamp, you may have that player discard a card. 2/1 |
| Treetop Ambusher | 1G | Creature — Elf Berserker | Dash {1}{G} (You may cast this spell for its dash cost. If you do, it gains haste, and it's returned from the battlefield to its owner's hand at the beginning of the next end step.) Whenever Treetop Ambusher attacks, target creature you control gets +1/+1 until end of turn. 2/1 |
| Winter Blast | XG | Sorcery | Tap X target creatures. Winter Blast deals 2 damage to each of those creatures with flying. |
| Retribution of the Ancients | B | Enchantment | {B}, Remove X +1/+1 counters from among creatures you control: Target creature gets -X/-X until end of turn. |
| Roiling Horror | 3BB | Creature — Horror | Roiling Horror's power and toughness are each equal to your life total minus the life total of an opponent with the most life. Suspend X—{X}{B}{B}{B}. X can't be 0. (Rather than cast this card from your hand, you may pay {X}{B}{B}{B} and exile it with X time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.) Whenever a time counter is removed from Roiling Horror while it's exiled, target player loses 1 life and you gain 1 life. */* |
| Rakdos Roustabout | 1BR | Creature — Ogre Warrior | Whenever Rakdos Roustabout becomes blocked, it deals 1 damage to the player or planeswalker it's attacking. 3/2 |
| Festering Evil | 3BB | Enchantment | At the beginning of your upkeep, Festering Evil deals 1 damage to each creature and each player. {B}{B}, Sacrifice Festering Evil: It deals 3 damage to each creature and each player. |