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 |
|---|---|---|---|
| Joven | 3RR | Legendary Creature — Human Rogue | {R}{R}{R}, {T}: Destroy target noncreature artifact. 3/3 |
| Drop of Honey | G | Enchantment | At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them. When there are no creatures on the battlefield, sacrifice Drop of Honey. |
| Porphyry Nodes | W | Enchantment | At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them. When there are no creatures on the battlefield, sacrifice Porphyry Nodes. |
| Rats of Rath | 1B | Creature — Rat | {B}: Destroy target artifact, creature, or land you control. 2/1 |
| Divine Intervention | 6WW | Enchantment | Divine Intervention enters the battlefield with two intervention counters on it. At the beginning of your upkeep, remove an intervention counter from Divine Intervention. When you remove the last intervention counter from Divine Intervention, the game is a draw. |
| Serrated Arrows | 4 | Artifact | Serrated Arrows enters the battlefield with three arrowhead counters on it. At the beginning of your upkeep, if there are no arrowhead counters on Serrated Arrows, sacrifice it. {T}, Remove an arrowhead counter from Serrated Arrows: Put a -1/-1 counter on target creature. |
| Argothian Sprite | 1G | Creature — Faerie | Argothian Sprite can't be blocked by artifact creatures. {7}: Put two +1/+1 counters on Argothian Sprite. 2/2 |
| Puca's Mischief | 3U | Enchantment | At the beginning of your upkeep, you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls with an equal or lesser mana value. |
| Descent into Madness | 3BB | Enchantment | At the beginning of your upkeep, put a despair counter on Descent into Madness, then each player exiles X permanents they control and/or cards from their hand, where X is the number of despair counters on Descent into Madness. |
| Glissa Sunseeker | 2GG | Legendary Creature — Elf Warrior | First strike {T}: Destroy target artifact if its mana value is equal to the amount of unspent mana you have. 3/2 |