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 |
|---|---|---|---|
| Knight of the Holy Nimbus | WW | Creature — Human Rebel Knight | Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) If Knight of the Holy Nimbus would be destroyed, regenerate it. (Tap it, remove it from combat, and heal all damage on it.) {2}: Knight of the Holy Nimbus can't be regenerated this turn. Only your opponents may activate this ability. 2/2 |
| Metalwork Colossus | 11 | Artifact Creature — Construct | This spell costs {X} less to cast, where X is the total mana value of noncreature artifacts you control. Sacrifice two artifacts: Return Metalwork Colossus from your graveyard to your hand. 10/10 |
| Their Name Is Death | 3BBB | Sorcery | Destroy all nonartifact creatures. |
| Gaea's Revenge | 5GG | Creature — Elemental | This spell can't be countered. Haste Gaea's Revenge can't be the target of nongreen spells or abilities from nongreen sources. 8/5 |
| Petrified Wood-Kin | 6G | Creature — Elemental Warrior | This spell can't be countered. Bloodthirst X (This creature enters the battlefield with X +1/+1 counters on it, where X is the damage dealt to your opponents this turn.) Protection from instants 3/3 |
| Gixian Skullflayer | 2B | Creature — Phyrexian Human Assassin | At the beginning of your upkeep, if there are three or more creature cards in your graveyard, put a +1/+1 counter on Gixian Skullflayer. 2/3 |
| True Polymorph | 4UU | Instant | Target artifact or creature becomes a copy of another target artifact or creature. |
| Hinterland Scourge | Creature — Werewolf | Hinterland Scourge must be blocked if able. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Hinterland Scourge. 3/2 | |
| Primitive Justice | 1R | Sorcery | As an additional cost to cast this spell, you may pay {1}{R} and/or {1}{G} any number of times. Destroy target artifact. For each additional {1}{R} you paid, destroy another target artifact. For each additional {1}{G} you paid, destroy another target artifact, and you gain 1 life. |
| Voltaic Key | 1 | Artifact | {1}, {T}: Untap target artifact. |