M:tG card similarity search
4GG · Enchantment
At the beginning of your upkeep, sacrifice Nature's Wrath unless you pay {G}. Whenever a player puts an Island or blue permanent onto the battlefield, that player sacrifices an Island or blue permanent. Whenever a player puts a Swamp or black permanent onto the battlefield, that player sacrifices a Swamp or black permanent.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Raka Sanctuary | 2R | Enchantment | At the beginning of your upkeep, if you control a white or blue permanent, Raka Sanctuary deals 1 damage to target creature. If you control a white permanent and a blue permanent, Raka Sanctuary deals 3 damage instead. | 
| Thorough Investigation | 2W | Enchantment | Whenever you attack, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") Whenever you sacrifice a Clue, venture into the dungeon. (Enter the first room or advance to the next room.) | 
| Culling Scales | 3 | Artifact | At the beginning of your upkeep, destroy target nonland permanent with the lowest mana value. (If two or more permanents are tied for lowest, target any one of them.) | 
| Wing Shards | 1WW | Instant | Target player sacrifices an attacking creature. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.) | 
| Karn Liberated | 7 | Legendary Planeswalker — Karn | [+4]: Target player exiles a card from their hand. [−3]: Exile target permanent. [−14]: Restart the game, leaving in exile all non-Aura permanent cards exiled with Karn Liberated. Then put those cards onto the battlefield under your control. Loyalty 6 | 
| Dragon's Herald | R | Creature — Goblin Shaman | {2}{R}, {T}, Sacrifice a black creature, a red creature, and a green creature: Search your library for a card named Hellkite Overlord, put it onto the battlefield, then shuffle. 1/1 | 
| Herbal Poultice | 0 | Artifact | {3}, Sacrifice Herbal Poultice: Regenerate target creature. | 
| Awaken the Maelstrom | Sorcery | Awaken the Maelstrom is all colors. Target player draws two cards. You may put an artifact card from your hand onto the battlefield. Create a token that's a copy of a permanent you control. Distribute three +1/+1 counters among one, two, or three creatures you control. Destroy target permanent an opponent controls. | |
| Magmaw | 3RR | Creature — Elemental | {1}, Sacrifice a nonland permanent: Magmaw deals 1 damage to any target. 4/4 | 
| Urza's Ruinous Blast | 4W | Legendary Sorcery | (You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Exile all nonland permanents that aren't legendary. |