M:tG card similarity search
1U · Enchantment
Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) When Ancestral Knowledge enters the battlefield, look at the top ten cards of your library, then exile any number of them and put the rest back on top of your library in any order. When Ancestral Knowledge leaves the battlefield, shuffle your library.
| Name | Mana | Type | Text |
|---|---|---|---|
| Forerunner of the Heralds | 3G | Creature — Merfolk Scout | When Forerunner of the Heralds enters the battlefield, you may search your library for a Merfolk card, reveal it, then shuffle and put that card on top. Whenever another Merfolk enters the battlefield under your control, put a +1/+1 counter on Forerunner of the Heralds. 3/2 |
| Klement, Knowledge Acolyte | 1WU | Legendary Creature — Tiefling Cleric | Vigilance When this creature specializes, seek three nonland permanent cards. Choose one of those cards and shuffle the rest into your library. 3/4 |
| Silverglade Elemental | 4G | Creature — Elemental | When Silverglade Elemental enters the battlefield, you may search your library for a Forest card, put that card onto the battlefield, then shuffle. 4/4 |
| Faceless Devourer | 2B | Creature — Nightmare Horror | Shadow (This creature can block or be blocked by only creatures with shadow.) When Faceless Devourer enters the battlefield, exile another target creature with shadow. When Faceless Devourer leaves the battlefield, return the exiled card to the battlefield under its owner's control. 2/1 |
| Commander Liara Portyr | 3RW | Legendary Creature — Human Soldier | Whenever you attack, spells you cast from exile this turn cost {X} less to cast, where X is the number of players being attacked. Exile the top X cards of your library. Until end of turn, you may cast spells from among those exiled cards. 5/3 |
| Vinesoul Spider | 1G | Creature — Elemental Spider | Reach At the beginning of your end step, put a random land card from your library into your graveyard. 3/2 |
| Ob Nixilis, Captive Kingpin | 2BR | Legendary Creature — Demon | Flying, trample Whenever one or more opponents each lose exactly 1 life, put a +1/+1 counter on Ob Nixilis, Captive Kingpin. Exile the top card of your library. Until your next end step, you may play that card. 4/3 |
| Bloodwater Entity | 1UR | Creature — Elemental | Flying Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When Bloodwater Entity enters the battlefield, you may put target instant or sorcery card from your graveyard on top of your library. 2/2 |
| Nightmare Incursion | 5B | Sorcery | Search target player's library for up to X cards, where X is the number of Swamps you control, and exile them. Then that player shuffles. |
| Mystic Sanctuary | Land — Island | ({T}: Add {U}.) Mystic Sanctuary enters the battlefield tapped unless you control three or more other Islands. When Mystic Sanctuary enters the battlefield untapped, you may put target instant or sorcery card from your graveyard on top of your library. |