M:tG card similarity search
3UU · Enchantment
As Energy Vortex enters the battlefield, choose an opponent. At the beginning of your upkeep, remove all vortex counters from Energy Vortex. At the beginning of the chosen player's upkeep, Energy Vortex deals 3 damage to that player unless they pay {1} for each vortex counter on Energy Vortex. {X}: Put X vortex counters on Energy Vortex. Activate only during your upkeep.
| Name | Mana | Type | Text |
|---|---|---|---|
| Glistening Extractor | 2UB | Artifact | Glistening Extractor enters the battlefield with four oil counters on it. At the beginning of your upkeep, if there are one or more oil counters on Glistening Extractor, seek a card with mana value equal to the number of oil counters on Glistening Extractor, then remove an oil counter from Glistening Extractor. |
| Discordant Dirge | 3BB | Enchantment | At the beginning of your upkeep, you may put a verse counter on Discordant Dirge. {B}, Sacrifice Discordant Dirge: Look at target opponent's hand and choose up to X cards from it, where X is the number of verse counters on Discordant Dirge. That player discards those cards. |
| Psychic Allergy | 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. |
| Thelon's Chant | 1GG | Enchantment | At the beginning of your upkeep, sacrifice Thelon's Chant unless you pay {G}. Whenever a player puts a Swamp onto the battlefield, Thelon's Chant deals 3 damage to that player unless the player puts a -1/-1 counter on a creature they control. |
| Barrin's Codex | 4 | Artifact | At the beginning of your upkeep, you may put a page counter on Barrin's Codex. {4}, {T}, Sacrifice Barrin's Codex: Draw X cards, where X is the number of page counters on Barrin's Codex. |
| Incendiary | R | Enchantment — Aura | Enchant creature At the beginning of your upkeep, you may put a fuse counter on Incendiary. When enchanted creature dies, Incendiary deals X damage to any target, where X is the number of fuse counters on Incendiary. |
| Copper Tablet | 2 | Artifact | At the beginning of each player's upkeep, Copper Tablet deals 1 damage to that player. |
| Magmaroth | 3R | Creature — Elemental | At the beginning of your upkeep, put a -1/-1 counter on Magmaroth. Whenever you cast a noncreature spell, remove a -1/-1 counter from Magmaroth. 5/5 |
| Sleeper Agent | B | Creature — Phyrexian Minion | When Sleeper Agent enters the battlefield, target opponent gains control of it. At the beginning of your upkeep, Sleeper Agent deals 2 damage to you. 3/3 |
| Tourach's Chant | 1BB | Enchantment | At the beginning of your upkeep, sacrifice Tourach's Chant unless you pay {B}. Whenever a player puts a Forest onto the battlefield, Tourach's Chant deals 3 damage to that player unless they put a -1/-1 counter on a creature they control. |