M:tG card similarity search
4BBB · Enchantment
At the beginning of your end step, you may reveal the top card of your library. If you do, each opponent loses life equal to that card's mana value.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Enchanter's Bane | 1R | Enchantment | At the beginning of your end step, target enchantment deals damage equal to its mana value to its controller unless that player sacrifices it. | 
| Skybreen | Plane — Kaldheim | Players play with the top card of their libraries revealed. Spells that share a card type with the top card of a library can't be cast. Whenever chaos ensues, target player loses life equal to the number of cards in their hand. | |
| Sorin, Grim Nemesis | 4WB | Legendary Planeswalker — Sorin | [+1]: Reveal the top card of your library and put that card into your hand. Each opponent loses life equal to its mana value. [−X]: Sorin, Grim Nemesis deals X damage to target creature or planeswalker and you gain X life. [−9]: Create a number of 1/1 black Vampire Knight creature tokens with lifelink equal to the highest life total among all players. Loyalty 6 | 
| Lagonna-Band Storyteller | 3W | Creature — Centaur Advisor | When Lagonna-Band Storyteller enters the battlefield, you may put target enchantment card from your graveyard on top of your library. If you do, you gain life equal to its mana value. 3/4 | 
| Bolas's Citadel | 3BBB | Legendary Artifact | You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life. | 
| Cerise, Slayer of Fear | 3WW | Legendary Creature — Human Cleric Knight | First strike, lifelink At the beginning of your postcombat main phase, if you gained life this turn, seek a card with the highest mana value among cards in your library with mana value less than or equal to the amount of life you gained this turn. 5/5 | 
| Stormchaser Chimera | 2UR | Creature — Chimera | Flying {2}{U}{R}: Scry 1, then reveal the top card of your library. Stormchaser Chimera gets +X/+0 until end of turn, where X is that card's mana value. (To scry 1, look at the top card of your library, then you may put that card on the bottom of your library.) 2/3 | 
| Primordial Mist | 4U | Enchantment | At the beginning of your end step, you may manifest the top card of your library. (Put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.) Exile a face-down permanent you control face up: You may play that card this turn. (You still pay its costs. Timing rules still apply.) | 
| Judge Unworthy | 1W | Instant | Choose target attacking or blocking creature. Scry 3, then reveal the top card of your library. Judge Unworthy deals damage equal to that card's mana value to that creature. | 
| Gollum, Obsessed Stalker | 1B | Legendary Creature — Halfling Horror | Skulk (This creature can't be blocked by creatures with greater power.) At the beginning of your end step, each opponent dealt combat damage this game by a creature named Gollum, Obsessed Stalker loses life equal to the amount of life you gained this turn. 1/1 |