M:tG card similarity search
2W · 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.) As Prismatic Circle enters the battlefield, choose a color. {1}: The next time a source of your choice of the chosen color would deal damage to you this turn, prevent that damage.
| Name | Mana | Type | Text |
|---|---|---|---|
| Holy Day | W | Instant | Prevent all combat damage that would be dealt this turn. |
| Root Snare | 1G | Instant | Prevent all combat damage that would be dealt this turn. |
| Invasion of Karsus | 2RR | Battle — Siege | (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.) When Invasion of Karsus enters the battlefield, it deals 3 damage to each creature and each planeswalker. |
| Iron Mastiff | 4 | Artifact Creature — Dog | Whenever Iron Mastiff attacks, roll a d20 for each player being attacked and ignore all but the highest roll. 1—9 | Iron Mastiff deals damage equal to its power to you. 10—19 | Iron Mastiff deals damage equal to its power to defending player. 20 | Iron Mastiff deals damage equal to its power to each opponent. 4/4 |
| Author of Shadows | 4B | Creature — Shade Warlock | When Author of Shadows enters the battlefield, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 3/3 |
| Sinstriker's Will | 3W | Enchantment — Aura | Enchant creature Enchanted creature has "{T}: This creature deals damage equal to its power to target attacking or blocking creature." |
| Emmara, Voice of the Conclave | 1GW | Legendary Creature — Elf Cleric | Convoke When Emmara, Voice of the Conclave enters the battlefield, draft a card from Emmara, Voice of the Conclave's spellbook. 2/3 |
| Glittering Frost | 2G | Snow Enchantment — Aura | Enchant land Enchanted land is snow. Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color. |
| Druid's Deliverance | 1G | Instant | Prevent all combat damage that would be dealt to you this turn. Populate. (Create a token that's a copy of a creature token you control.) |
| Rupture | 2R | Sorcery | Sacrifice a creature. Rupture deals damage equal to that creature's power to each creature without flying and each player. |