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 |
|---|---|---|---|
| Descent into Avernus | 2R | Enchantment | At the beginning of your upkeep, put two descent counters on Descent into Avernus. Then each player creates X Treasure tokens and Descent into Avernus deals X damage to each player, where X is the number of descent counters on Descent into Avernus. |
| Winding Constrictor | BG | Creature — Snake | If one or more counters would be put on an artifact or creature you control, that many plus one of each of those kinds of counters are put on that permanent instead. If you would get one or more counters, you get that many plus one of each of those kinds of counters instead. 2/3 |
| Jolt | 2U | Instant | You may tap or untap target artifact, creature, or land. Draw a card at the beginning of the next turn's upkeep. |
| Altered Ego | X2GU | Creature — Shapeshifter | This spell can't be countered. You may have Altered Ego enter the battlefield as a copy of any creature on the battlefield, except it enters with X additional +1/+1 counters on it. 0/0 |
| Void Winnower | 9 | Creature — Eldrazi | Your opponents can't cast spells with even mana values. (Zero is even.) Your opponents can't block with creatures with even mana values. 11/9 |
| Ogre Enforcer | 3RR | Creature — Ogre | Ogre Enforcer can't be destroyed by lethal damage unless lethal damage dealt by a single source is marked on it. 4/4 |
| Fountain of Cho | Land | Fountain of Cho enters the battlefield tapped. {T}: Put a storage counter on Fountain of Cho. {T}, Remove any number of storage counters from Fountain of Cho: Add {W} for each storage counter removed this way. | |
| Mercadian Bazaar | Land | Mercadian Bazaar enters the battlefield tapped. {T}: Put a storage counter on Mercadian Bazaar. {T}, Remove any number of storage counters from Mercadian Bazaar: Add {R} for each storage counter removed this way. | |
| Rushwood Grove | Land | Rushwood Grove enters the battlefield tapped. {T}: Put a storage counter on Rushwood Grove. {T}, Remove any number of storage counters from Rushwood Grove: Add {G} for each storage counter removed this way. | |
| Saprazzan Cove | Land | Saprazzan Cove enters the battlefield tapped. {T}: Put a storage counter on Saprazzan Cove. {T}, Remove any number of storage counters from Saprazzan Cove: Add {U} for each storage counter removed this way. |