M:tG card similarity search
2U · Enchantment
Whenever an opponent casts a spell from their hand, you may reveal the top card of your library. If it shares a card type with that spell, counter that spell and that opponent may cast the revealed card without paying its mana cost.
| Name | Mana | Type | Text |
|---|---|---|---|
| Progenitor's Icon | 3 | Artifact | As Progenitor's Icon enters the battlefield, choose a creature type. {T}: Add one mana of any color. {T}: The next spell of the chosen type you cast this turn can be cast as though it had flash. |
| Undersimplify | 1U | Instant | Choose target spell. If it's a creature spell, it perpetually gets -2/-0. Counter that spell unless its controller pays {2}. |
| Foul Emissary | 2G | Creature — Human Horror | When Foul Emissary enters the battlefield, look at the top four cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order. When you sacrifice Foul Emissary while casting a spell with emerge, create a 3/2 colorless Eldrazi Horror creature token. 1/1 |
| Thran Tome | 4 | Artifact | {5}, {T}: Reveal the top three cards of your library. Target opponent chooses one of those cards. Put that card into your graveyard, then draw two cards. |
| Water Weird | 3U | Creature — Elemental Weird | Whenever Water Weird deals combat damage to a player, put a +1/+1 counter on Water Weird if the top card of your library is a nonland card. Otherwise, you may mill a card. {1}{U}: Water Weird gets +1/-1 until end of turn. 3/4 |
| Vexing Scuttler | 8 | Creature — Eldrazi Crab | Emerge {6}{U} (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 return target instant or sorcery card from your graveyard to your hand. 4/5 |
| A-Vega, the Watcher | 1WU | Legendary Creature — Bird Spirit | Flying Ward {2} Whenever you cast a spell from anywhere other than your hand, draw a card. 2/2 |
| March of Otherworldly Light | XW | Instant | As an additional cost to cast this spell, you may exile any number of white cards from your hand. This spell costs {2} less to cast for each card exiled this way. Exile target artifact, creature, or enchantment with mana value X or less. |
| Chrome Host Seedshark | 2U | Creature — Phyrexian Shark | Flying Whenever you cast a noncreature spell, incubate X, where X is that spell's mana value. (Create an Incubator token with X +1/+1 counters on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.) 2/4 |
| 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. |