M:tG card similarity search
1BR · Enchantment
Cumulative upkeep {1} (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 your upkeep, put a rust counter on each artifact target opponent controls. Then destroy each artifact with mana value less than or equal to the number of rust counters on it. Artifacts destroyed this way can't be regenerated. When Corrosion leaves the battlefield, remove all rust counters from all permanents.
| Name | Mana | Type | Text |
|---|---|---|---|
| Consuming Ferocity | 1R | Enchantment — Aura | Enchant non-Wall creature Enchanted creature gets +1/+0. At the beginning of your upkeep, put a +1/+0 counter on enchanted creature. If that creature has three or more +1/+0 counters on it, it deals damage equal to its power to its controller, then destroy that creature and it can't be regenerated. |
| Braids, Cabal Minion | 2BB | Legendary Creature — Human Minion | At the beginning of each player's upkeep, that player sacrifices an artifact, creature, or land. 2/2 |
| Bounty Hunter | 2BB | Creature — Human Archer Minion | {T}: Put a bounty counter on target nonblack creature. {T}: Destroy target creature with a bounty counter on it. 2/2 |
| Steelbane Hydra | XGG | Creature — Turtle Hydra | Steelbane Hydra enters the battlefield with X +1/+1 counters on it. {2}{G}, Remove a +1/+1 counter from Steelbane Hydra: Destroy target artifact or enchantment. 0/0 |
| Ghastly Demise | B | Instant | Destroy target nonblack creature if its toughness is less than or equal to the number of cards in your graveyard. |
| Perish | 2B | Sorcery | Destroy all green creatures. They can't be regenerated. |
| Growing Ranks | 2G/WG/W | Enchantment | At the beginning of your upkeep, populate. (Create a token that's a copy of a creature token you control.) |
| Half-Shark, Half- | Creature — Shark | At the beginning of your upkeep, Augment {5}{U} ({5}{U}, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.) +3/+3 | |
| Act of Authority | 1WW | Enchantment | When Act of Authority enters the battlefield, you may exile target artifact or enchantment. At the beginning of your upkeep, you may exile target artifact or enchantment. If you do, its controller gains control of Act of Authority. |
| Conjured Currency | 5U | Enchantment | At the beginning of your upkeep, you may exchange control of Conjured Currency and target permanent you neither own nor control. |