M:tG card similarity search
2U · World Enchantment
Whenever a player casts an instant spell, counter it unless that player pays {X}, where X is its mana value.
| Name | Mana | Type | Text |
|---|---|---|---|
| Hardy Outlander | 1G | Legendary Enchantment — Background | Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, another target creature you control gets +X/+X until end of turn, where X is this creature's power." |
| Memory Worm | 1R | Creature — Alien Worm | Paradox — Whenever you cast a spell from anywhere other than your hand, Memory Worm deals 2 damage to target player. That player discards a card, then draws a card. Put a +1/+1 counter on Memory Worm. 1/1 |
| Vivien's Arkbow | 1G | Legendary Artifact | {X}, {T}, Discard a card: Look at the top X cards of your library. You may put a creature card with mana value X or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order. |
| Serpent's Soul-Jar | 2B | Artifact | Whenever an Elf you control dies, exile it. {T}, Pay 2 life: Until end of turn, you may cast a creature spell from among cards exiled with Serpent's Soul-Jar. |
| Quiet Contemplation | 2U | Enchantment | Whenever you cast a noncreature spell, you may pay {1}. If you do, tap target creature an opponent controls and it doesn't untap during its controller's next untap step. |
| Voracious Reader | Creature — Eldrazi Homunculus | Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) Instant and sorcery spells you cast cost {1} less to cast. 3/4 | |
| Ruthless Sniper | B | Creature — Human Archer | Whenever you cycle or discard a card, you may pay {1}. If you do, put a -1/-1 counter on target creature. 1/2 |
| Sirocco | 1R | Instant | Target player reveals their hand. For each blue instant card revealed this way, that player discards that card unless they pay 4 life. |
| Valkmira, Protector's Shield | 3W | Legendary Artifact | If a source an opponent controls would deal damage to you or a permanent you control, prevent 1 of that damage. Whenever you or another permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {1}. |
| Veko, Death's Doorkeeper | WB | Legendary Creature — Spirit Cleric | Extort {T}, Sacrifice a non-Spirit creature: Return target creature card from your graveyard to your hand. It perpetually becomes a Spirit, has base power and toughness 1/1, and gains "You may pay {W/B} rather than pay this spell's mana cost." Activate only as a sorcery. 1/3 |