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 |
|---|---|---|---|
| Roiling Vortex | 1R | Enchantment | At the beginning of each player's upkeep, Roiling Vortex deals 1 damage to them. Whenever a player casts a spell, if no mana was spent to cast that spell, Roiling Vortex deals 5 damage to that player. {R}: Your opponents can't gain life this turn. |
| Reverse Polarity | WW | Instant | You gain X life, where X is twice the damage dealt to you so far this turn by artifacts. |
| Keeper of Keys | 3UU | Creature — Human Rogue Mutant | When Keeper of Keys enters the battlefield, you become the monarch. At the beginning of your upkeep, if you're the monarch, creatures you control can't be blocked this turn. 4/4 |
| Mana Crypt | 0 | Artifact | At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}. |
| Jukai Liberator | 2G | Creature — Snake Ninja | Ninjutsu {1}{G} Whenever Jukai Liberator deals combat damage to a player, choose land or nonland. Seek a permanent card of the chosen type. 3/3 |
| Arcades Sabboth | 2GGWWUU | Legendary Creature — Elder Dragon | Flying At the beginning of your upkeep, sacrifice Arcades Sabboth unless you pay {G}{W}{U}. Each untapped creature you control gets +0/+2 as long as it's not attacking. {W}: Arcades Sabboth gets +0/+1 until end of turn. 7/7 |
| Sejiri Steppe | Land | Sejiri Steppe enters the battlefield tapped. When Sejiri Steppe enters the battlefield, target creature you control gains protection from the color of your choice until end of turn. {T}: Add {W}. | |
| Detonate | XR | Sorcery | Destroy target artifact with mana value X. It can't be regenerated. Detonate deals X damage to that artifact's controller. |
| Nyx Weaver | 1BG | Enchantment Creature — Spider | Reach At the beginning of your upkeep, mill two cards. {1}{B}{G}, Exile Nyx Weaver: Return target card from your graveyard to your hand. 2/3 |
| Trusted Advisor | U | Creature — Human Advisor | Your maximum hand size is increased by two. At the beginning of your upkeep, return a blue creature you control to its owner's hand. 1/2 |