M:tG card similarity search
UU · Enchantment
At the beginning of your upkeep, sacrifice Sunken City unless you pay {U}{U}. Blue creatures get +1/+1.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Anowon, the Ruin Sage | 3BB | Legendary Creature — Vampire Shaman | At the beginning of your upkeep, each player sacrifices a non-Vampire creature. 4/3 | 
| Pit Raptor | 2BB | Creature — Bird Mercenary | Flying, first strike At the beginning of your upkeep, sacrifice Pit Raptor unless you pay {2}{B}{B}. 4/3 | 
| Demonic Taskmaster | 2B | Creature — Demon | Flying At the beginning of your upkeep, sacrifice a creature other than Demonic Taskmaster. 4/3 | 
| Stalking Vampire | Creature — Vampire | At the beginning of your upkeep, you may pay {2}{B}{B}. If you do, transform Stalking Vampire. 5/5 | |
| Carnophage | B | Creature — Zombie | At the beginning of your upkeep, tap Carnophage unless you pay 1 life. 2/2 | 
| Sangrophage | BB | Creature — Zombie | At the beginning of your upkeep, tap Sangrophage unless you pay 2 life. 3/3 | 
| Barrow Ghoul | 1B | Creature — Zombie | At the beginning of your upkeep, sacrifice Barrow Ghoul unless you exile the top creature card of your graveyard. 4/4 | 
| Phyrexian Soulgorger | 3 | Snow Artifact Creature — Phyrexian Construct | Cumulative upkeep—Sacrifice a creature. (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.) 8/8 | 
| Aura Flux | 2U | Enchantment | Other enchantments have "At the beginning of your upkeep, sacrifice this enchantment unless you pay {2}." | 
| Screeching Bat | 2B | Creature — Bat | Flying At the beginning of your upkeep, you may pay {2}{B}{B}. If you do, transform Screeching Bat. 2/2 |