M:tG card similarity search
4GG · Instant — Trap
If a creature spell you cast this turn was countered by a spell or ability an opponent controlled, you may pay {0} rather than pay this spell's mana cost. Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.
| Name | Mana | Type | Text |
|---|---|---|---|
| Opal Titan | 2WW | Enchantment | When an opponent casts a creature spell, if Opal Titan is an enchantment, Opal Titan becomes a 4/4 Giant creature with protection from each of that spell's colors. |
| Obsidian Charmaw | 3RR | Creature — Dragon | This spell costs {1} less to cast for each land your opponents control that could produce {C}. Flying When Obsidian Charmaw enters the battlefield, destroy target nonbasic land an opponent controls. 4/4 |
| Arcane Laboratory | 2U | Enchantment | Each player can't cast more than one spell each turn. |
| Rule of Law | 2W | Enchantment | Each player can't cast more than one spell each turn. |
| Starfield Mystic | 1W | Creature — Human Cleric | Enchantment spells you cast cost {1} less to cast. Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on Starfield Mystic. 2/2 |
| Agatha of the Vile Cauldron | RG | Legendary Creature — Human Warlock | Activated abilities of creatures you control cost {X} less to activate, where X is Agatha of the Vile Cauldron's power. This effect can't reduce the mana in that cost to less than one mana. {4}{R}{G}: Other creatures you control get +1/+1 and gain trample and haste until end of turn. 1/1 |
| Polymorph | 3U | Sorcery | Destroy target creature. It can't be regenerated. Its controller reveals cards from the top of their library until they reveal a creature card. The player puts that card onto the battlefield, then shuffles all other cards revealed this way into their library. |
| Chalice of the Void | XX | Artifact | Chalice of the Void enters the battlefield with X charge counters on it. Whenever a player casts a spell with mana value equal to the number of charge counters on Chalice of the Void, counter that spell. |
| Hogaak, Arisen Necropolis | 5B/GB/G | Legendary Creature — Avatar | You can't spend mana to cast this spell. Convoke, delve (Each creature you tap while casting this spell pays for {1} or one mana of that creature's color. Each card you exile from your graveyard pays for {1}.) You may cast Hogaak, Arisen Necropolis from your graveyard. Trample 8/8 |
| Marshmist Titan | 6B | Creature — Giant | This spell costs {X} less to cast, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.) 4/5 |