M:tG card similarity search
2U · Sorcery
For each creature, its controller sacrifices a permanent unless they pay {1}.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Thunderclap | 2R | Instant | You may sacrifice a Mountain rather than pay this spell's mana cost. Thunderclap deals 3 damage to target creature. | 
| Fraying Line | 4 | Artifact | When Fraying Line enters the battlefield, put a rope counter on target creature you control. At the beginning of each player's upkeep, that player may pay {2}. If they do, they put a rope counter on a creature they control. Otherwise, exile Fraying Line and each creature without a rope counter on it, then remove all rope counters from all creatures. | 
| Gratuitous Violence | 2RRR | Enchantment | If a creature you control would deal damage to a permanent or player, it deals double that damage to that permanent or player instead. | 
| Rhystic Shield | 1W | Instant | Creatures you control get +0/+1 until end of turn. They get an additional +0/+2 until end of turn unless any player pays {2}. | 
| Covetous Dragon | 4R | Creature — Dragon | Flying When you control no artifacts, sacrifice Covetous Dragon. 6/5 | 
| Mire in Misery | 1B | Sorcery | Each opponent sacrifices a creature or enchantment. | 
| End Hostilities | 3WW | Sorcery | Destroy all creatures and all permanents attached to creatures. | 
| Raiders' Spoils | 3B | Enchantment | Creatures you control get +1/+0. Whenever a Warrior you control deals combat damage to a player, you may pay 1 life. If you do, draw a card. | 
| Woebringer Demon | 3BB | Creature — Demon | Flying At the beginning of each player's upkeep, that player sacrifices a creature. If the player can't, sacrifice Woebringer Demon. 4/4 | 
| The Myriad Pools | Legendary Artifact Land | (Transforms from The Everflowing Well.) {T}: Add {U}. Whenever you cast a permanent spell using mana produced by The Myriad Pools, up to one other target permanent you control becomes a copy of that spell until end of turn. |