M:tG card similarity search
2UU · Enchantment
Whenever a player casts a spell without asking your permission while casting it, counter that spell. When a player asks you permission to cast a spell and you refuse, counter that spell and sacrifice Common Courtesy.
| Name | Mana | Type | Text |
|---|---|---|---|
| Horn of Plenty | 6 | Artifact | Whenever a player casts a spell, they may pay {1}. If the player does, they draw a card at the beginning of the next end step. |
| Ivory Cup | 1 | Artifact | Whenever a player casts a white spell, you may pay {1}. If you do, you gain 1 life. |
| Main Event Horizon | 3WW | Sorcery | As an additional cost to cast this spell, choose A through M or N through Z. Destroy each creature whose name begins with a letter in the chosen range. |
| Throne of Bone | 1 | Artifact | Whenever a player casts a black spell, you may pay {1}. If you do, you gain 1 life. |
| Chorus of the Conclave | 4GGWW | Legendary Creature — Dryad | Forestwalk (This creature can't be blocked as long as defending player controls a Forest.) As an additional cost to cast creature spells, you may pay any amount of mana. If you do, that creature enters the battlefield with that many additional +1/+1 counters on it. 3/8 |
| Primordial Sage | 4GG | Creature — Spirit | Whenever you cast a creature spell, you may draw a card. 4/5 |
| Launch Party | 3B | Instant | As an additional cost to cast this spell, sacrifice a creature. Destroy target creature. Its controller loses 2 life. |
| Silverflame Ritual | 3W | Sorcery | Put a +1/+1 counter on each creature you control. Adamant — If at least three white mana was spent to cast this spell, creatures you control gain vigilance until end of turn. |
| Tidespout Tyrant | 5UUU | Creature — Djinn | Flying Whenever you cast a spell, return target permanent to its owner's hand. 5/5 |
| Thran Turbine | 1 | Artifact | At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells. |