M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Keeper of Secrets | 5R | Creature — Demon | First strike, haste Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent. 6/4 |
| Shadowbane | 1W | Instant | The next time a source of your choice would deal damage to you and/or creatures you control this turn, prevent that damage. If damage from a black source is prevented this way, you gain that much life. |
| Dragonspark Reactor | 1R | Artifact | Whenever Dragonspark Reactor or another artifact enters the battlefield under your control, put a charge counter on Dragonspark Reactor. {4}, Sacrifice Dragonspark Reactor: It deals damage equal to the number of charge counters on it to target player and that much damage to up to one target creature. |
| Michiko Konda, Truth Seeker | 3W | Legendary Creature — Human Advisor | Whenever a source an opponent controls deals damage to you, that player sacrifices a permanent. 2/2 |
| Circle of Protection: White | 1W | Enchantment | {1}: The next time a white source of your choice would deal damage to you this turn, prevent that damage. |
| Phthisis | 3BBBB | Sorcery | Destroy target creature. Its controller loses life equal to its power plus its toughness. Suspend 5—{1}{B} (Rather than cast this card from your hand, you may pay {1}{B} and exile it with five time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) |
| Pentagram of the Ages | 4 | Artifact | {4}, {T}: The next time a source of your choice would deal damage to you this turn, prevent that damage. |
| Circle of Protection: Blue | 1W | Enchantment | {1}: The next time a blue source of your choice would deal damage to you this turn, prevent that damage. |
| Hit | 1BR | Instant | Target player sacrifices an artifact or creature. Hit deals damage to that player equal to that permanent's mana value. |
| Invulnerability | 1W | Instant | Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) The next time a source of your choice would deal damage to you this turn, prevent that damage. |