M:tG card similarity search
4WB · Enchantment
Spells and abilities you control can't destroy, exile, target, or cause you to sacrifice A Good Thing. At the beginning of your upkeep, double your life total. Then, if you have 1,000 or more life, you lose the game.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Crack in Time | 3W | Enchantment | Vanishing 3 (This enchantment enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.) When Crack in Time enters the battlefield and at the beginning of your precombat main phase, exile target creature an opponent controls until Crack in Time leaves the battlefield. | 
| Monk Class | WU | Enchantment — Class | (Gain the next level as a sorcery to add its ability.) The second spell you cast each turn costs {1} less to cast. {W}{U}: Level 2 When this Class becomes level 2, return up to one target nonland permanent to its owner's hand. {1}{W}{U}: Level 3 At the beginning of your upkeep, exile the top card of your library. For as long as it remains exiled, it has "You may cast this card from exile as long as you've cast another spell this turn." | 
| Skemfar Avenger | 1B | Creature — Elf Berserker | Whenever another nontoken Elf or Berserker you control dies, you draw a card and you lose 1 life. 3/1 | 
| Gravestorm | BBB | Enchantment | At the beginning of your upkeep, target opponent may exile a card from their graveyard. If that player doesn't, you may draw a card. | 
| Scorching Lava | 1R | Instant | Kicker {R} (You may pay an additional {R} as you cast this spell.) Scorching Lava deals 2 damage to any target. If this spell was kicked, that creature can't be regenerated this turn and if it would die this turn, exile it instead. | 
| Nazgûl Battle-Mace | 5 | Artifact — Equipment | Equipped creature has menace, deathtouch, annihilator 1, and "Whenever an opponent sacrifices a nontoken permanent, put that card onto the battlefield under your control unless that player pays 3 life." (Whenever a creature with annihilator 1 attacks, defending player sacrifices a permanent.) Equip {3} | 
| Fell Beast of Mordor | 2BB | Creature — Drake Beast | Flying Devour 1 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with that many +1/+1 counters on it.) Whenever Fell Beast of Mordor enters the battlefield or attacks, target opponent loses X life and you gain X life, where X is the number of +1/+1 counters on it. 3/3 | 
| Powder Keg | 2 | Artifact | At the beginning of your upkeep, you may put a fuse counter on Powder Keg. {T}, Sacrifice Powder Keg: Destroy each artifact and creature with mana value equal to the number of fuse counters on Powder Keg. | 
| Scalelord Reckoner | 3WW | Creature — Dragon | Flying Whenever a Dragon you control becomes the target of a spell or ability an opponent controls, destroy target nonland permanent that player controls. 4/4 | 
| Curse of Oblivion | 3B | Enchantment — Aura Curse | Enchant player At the beginning of enchanted player's upkeep, that player exiles two cards from their graveyard. |