M:tG card similarity search
2RRR · Creature — Dragon
Flying Whenever Scourge of Valkas or another Dragon enters the battlefield under your control, it deals X damage to any target, where X is the number of Dragons you control. {R}: Scourge of Valkas gets +1/+0 until end of turn. 4/4
| Name | Mana | Type | Text | 
|---|---|---|---|
| Bag End Porter | 3G | Creature — Dwarf | Whenever Bag End Porter attacks, it gets +X/+X until end of turn, where X is the number of legendary creatures you control. 4/4 | 
| Pyre-Sledge Arsonist | 2R | Creature — Viashino Shaman | {1}, {T}: Pyre-Sledge Arsonist deals X damage to any target, where X is the number of permanents you've sacrificed this turn. 2/2 | 
| Vile Deacon | 2BB | Creature — Human Cleric | Whenever Vile Deacon attacks, it gets +X/+X until end of turn, where X is the number of Clerics on the battlefield. 2/2 | 
| Street Spasm | XR | Instant | Street Spasm deals X damage to target creature without flying you don't control. Overload {X}{X}{R}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.") | 
| Bronzebeak Moa | 2GW | Creature — Bird | Whenever another creature enters the battlefield under your control, Bronzebeak Moa gets +3/+3 until end of turn. 2/2 | 
| Sparksmith | 1R | Creature — Goblin | {T}: Sparksmith deals X damage to target creature and X damage to you, where X is the number of Goblins on the battlefield. 1/1 | 
| Wirewood Pride | G | Instant | Target creature gets +X/+X until end of turn, where X is the number of Elves on the battlefield. | 
| Lathliss, Dragon Queen | 4RR | Legendary Creature — Dragon | Flying Whenever another nontoken Dragon enters the battlefield under your control, create a 5/5 red Dragon creature token with flying. {1}{R}: Dragons you control get +1/+0 until end of turn. 6/6 | 
| A-Pyre-Sledge Arsonist | 2R | Creature — Viashino Shaman | {1}, {T}: Pyre-Sledge Arsonist deals X damage to any target, where X is the number of permanents you've sacrificed this turn. 2/3 | 
| Herd Gnarr | 3G | Creature — Beast | Whenever another creature enters the battlefield under your control, Herd Gnarr gets +2/+2 until end of turn. 2/2 |