M:tG card similarity search
1U · Artifact — Clue
As Ominous Lockbox enters the battlefield, secretly choose a number between 1 and 20. When an opponent casts a spell with mana value equal to the chosen number, sacrifice Ominous Lockbox. If you do, copy that spell, and you may choose new targets for the copy. {2}, Sacrifice Ominous Lockbox: Draw a card.
| Name | Mana | Type | Text |
|---|---|---|---|
| Sisterhood of Karn | 1G | Creature — Cleric | Sisterhood of Karn enters the battlefield with a +1/+1 counter on it. Paradox — Whenever you cast a spell from anywhere other than your hand, double the number of +1/+1 counters on Sisterhood of Karn. 0/0 |
| Mindbreak Trap | 2UU | Instant — Trap | If an opponent cast three or more spells this turn, you may pay {0} rather than pay this spell's mana cost. Exile any number of target spells. |
| Grave Sifter | 5G | Creature — Elemental Beast | When Grave Sifter enters the battlefield, each player chooses a creature type and returns any number of cards of that type from their graveyard to their hand. 5/7 |
| Rampaging Yao Guai | XGGG | Creature — Bear Mutant | Vigilance, trample Rampaging Yao Guai enters the battlefield with X +1/+1 counters on it. When Rampaging Yao Guai enters the battlefield, destroy any number of target artifacts and/or enchantments with total mana value X or less. 2/2 |
| Mirror of Fate | 5 | Artifact | {T}, Sacrifice Mirror of Fate: Choose up to seven face-up exiled cards you own. Exile all the cards from your library, then put the chosen cards on top of your library. |
| Illuminated Wings | 1U | Enchantment — Aura | Enchant creature Enchanted creature has flying. {2}, Sacrifice Illuminated Wings: Draw a card. |
| Herigast, Erupting Nullkite | 9 | Legendary Creature — Eldrazi Dragon | Emerge {6}{R}{R} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.) When you cast this spell, you may exile your hand. If you do, draw three cards. Flying Each creature spell you cast has emerge. The emerge cost is equal to its mana cost. 6/6 |
| The Moment | 2 | Legendary Artifact | At the beginning of your upkeep, put a time counter on The Moment. {2}, {T}: Untap target creature you control. It phases out until The Moment leaves the battlefield. {3}, {T}: Destroy each nonland permanent with mana value less than or equal to the number of time counters on The Moment. Then sacrifice The Moment. Activate only as a sorcery. |
| Spirited Companion | 1W | Enchantment Creature — Dog | When Spirited Companion enters the battlefield, draw a card. 1/1 |
| River Kelpie | 3UU | Creature — Beast | Whenever River Kelpie or another permanent enters the battlefield from a graveyard, draw a card. Whenever a player casts a spell from a graveyard, draw a card. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.) 3/3 |