M:tG card similarity search
U · Enchantment — Aura
Enchant creature At the beginning of your upkeep, you may put a page counter on Private Research. When enchanted creature dies, draw a card for each page counter on Private Research.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Chance Encounter | 2RR | Enchantment | Whenever you win a coin flip, put a luck counter on Chance Encounter. At the beginning of your upkeep, if Chance Encounter has ten or more luck counters on it, you win the game. | 
| Pursuit of Knowledge | 3W | Enchantment | If you would draw a card, you may put a study counter on Pursuit of Knowledge instead. Remove three study counters from Pursuit of Knowledge, Sacrifice Pursuit of Knowledge: Draw seven cards. | 
| Armageddon Clock | 6 | Artifact | At the beginning of your upkeep, put a doom counter on Armageddon Clock. At the beginning of your draw step, Armageddon Clock deals damage equal to the number of doom counters on it to each player. {4}: Remove a doom counter from Armageddon Clock. Any player may activate this ability but only during any upkeep step. | 
| Aether Vial | 1 | Artifact | At the beginning of your upkeep, you may put a charge counter on Aether Vial. {T}: You may put a creature card with mana value equal to the number of charge counters on Aether Vial from your hand onto the battlefield. | 
| Bloodhall Ooze | R | Creature — Ooze | At the beginning of your upkeep, if you control a black permanent, you may put a +1/+1 counter on Bloodhall Ooze. At the beginning of your upkeep, if you control a green permanent, you may put a +1/+1 counter on Bloodhall Ooze. 1/1 | 
| Black Market | 3BB | Enchantment | Whenever a creature dies, put a charge counter on Black Market. At the beginning of your precombat main phase, add {B} for each charge counter on Black Market. | 
| Traveling Plague | 3BB | Enchantment — Aura | Enchant creature At the beginning of each upkeep, put a plague counter on Traveling Plague. Enchanted creature gets -1/-1 for each plague counter on Traveling Plague. When enchanted creature leaves the battlefield, that creature's controller returns Traveling Plague from its owner's graveyard to the battlefield. | 
| Serra's Liturgy | 2WW | Enchantment | At the beginning of your upkeep, you may put a verse counter on Serra's Liturgy. {W}, Sacrifice Serra's Liturgy: Destroy up to X target artifacts and/or enchantments, where X is the number of verse counters on Serra's Liturgy. | 
| Otherworld Atlas | 4 | Artifact | {T}: Put a charge counter on Otherworld Atlas. {T}: Each player draws a card for each charge counter on Otherworld Atlas. | 
| Chlorophant | GGG | Creature — Elemental | At the beginning of your upkeep, you may put a +1/+1 counter on Chlorophant. Threshold — As long as seven or more cards are in your graveyard, Chlorophant has "At the beginning of your upkeep, you may put another +1/+1 counter on Chlorophant." 1/1 |