M:tG card similarity search
3UU · Enchantment
As Psychic Allergy enters the battlefield, choose a color. At the beginning of each opponent's upkeep, Psychic Allergy deals X damage to that player, where X is the number of nontoken permanents of the chosen color they control. At the beginning of your upkeep, destroy Psychic Allergy unless you sacrifice two Islands.
| Name | Mana | Type | Text |
|---|---|---|---|
| Empowered Autogenerator | 4 | Artifact | Empowered Autogenerator enters the battlefield tapped. {T}: Put a charge counter on Empowered Autogenerator. Add X mana of any one color, where X is the number of charge counters on Empowered Autogenerator. |
| Arcum's Astrolabe | S | Snow Artifact | ({S} can be paid with one mana from a snow source.) When Arcum's Astrolabe enters the battlefield, draw a card. {1}, {T}: Add one mana of any color. |
| Energy Refractor | 2 | Artifact | When Energy Refractor enters the battlefield, draw a card. {2}: Add one mana of any color. |
| Prophetic Prism | 2 | Artifact | When Prophetic Prism enters the battlefield, draw a card. {1}, {T}: Add one mana of any color. |
| Vitality Hunter | 3W | Creature — Nightmare | Lifelink {X}{W}{W}: Monstrosity X. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.) When Vitality Hunter becomes monstrous, put a lifelink counter on each of up to X target creatures. 3/4 |
| Roar of the Crowd | 3R | Sorcery | Choose a creature type. Roar of the Crowd deals damage to any target equal to the number of permanents you control of the chosen type. |
| Flameblast Dragon | 4RR | Creature — Dragon | Flying Whenever Flameblast Dragon attacks, you may pay {X}{R}. If you do, Flameblast Dragon deals X damage to any target. 5/5 |
| Key to the Archive | 4 | Artifact | Key to the Archive enters the battlefield tapped. When Key to the Archive enters the battlefield, draft a card from Key to the Archive's spellbook, then discard a card. {T}: Add two mana in any combination of colors. |
| Honden of Life's Web | 4G | Legendary Enchantment — Shrine | At the beginning of your upkeep, create a 1/1 colorless Spirit creature token for each Shrine you control. |
| Doomgape | 4B/GB/GB/G | Creature — Elemental | Trample At the beginning of your upkeep, sacrifice a creature. You gain life equal to that creature's toughness. 10/10 |