M:tG card similarity search
2B · Creature — Bat
Flying At the beginning of your upkeep, you may pay {2}{B}{B}. If you do, transform Screeching Bat. 2/2
| Name | Mana | Type | Text |
|---|---|---|---|
| Season of the Witch | BBB | Enchantment | At the beginning of your upkeep, sacrifice Season of the Witch unless you pay 2 life. At the beginning of the end step, destroy all untapped creatures that didn't attack this turn, except for creatures that couldn't attack. |
| Umbilicus | 4 | Artifact | At the beginning of each player's upkeep, that player may pay 2 life. If they don't, they return a permanent they control to its owner's hand. |
| Thran Turbine | 1 | Artifact | At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells. |
| Martial Law | 2WW | Enchantment | At the beginning of your upkeep, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.) |
| Vedalken Infuser | 3U | Creature — Vedalken Wizard | At the beginning of your upkeep, you may put a charge counter on target artifact. 1/4 |
| Cosmic Horror | 3BBB | Creature — Horror | First strike At the beginning of your upkeep, destroy Cosmic Horror unless you pay {3}{B}{B}{B}. If Cosmic Horror is destroyed this way, it deals 7 damage to you. 7/7 |
| Demonic Hordes | 3BBB | Creature — Demon | {T}: Destroy target land. At the beginning of your upkeep, unless you pay {B}{B}{B}, tap Demonic Hordes and sacrifice a land of an opponent's choice. 5/5 |
| 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 |
| Maddening Wind | 2G | Enchantment — Aura | Enchant creature Cumulative upkeep {G} (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.) At the beginning of the upkeep of enchanted creature's controller, Maddening Wind deals 2 damage to that player. |
| Riptide Chimera | 2U | Enchantment Creature — Chimera | Flying At the beginning of your upkeep, return an enchantment you control to its owner's hand. 3/4 |