M:tG card similarity search
3R · Creature — Elemental
At the beginning of your upkeep, put a -1/-1 counter on Magmaroth. Whenever you cast a noncreature spell, remove a -1/-1 counter from Magmaroth. 5/5
| Name | Mana | Type | Text | 
|---|---|---|---|
| Stronghold Overseer | 3BBB | Creature — Demon | Flying Shadow (This creature can block or be blocked by only creatures with shadow.) {B}{B}: Creatures with shadow get +1/+0 until end of turn and creatures without shadow get -1/-0 until end of turn. 5/5 | 
| Archdemon of Greed | Creature — Demon | Flying, trample At the beginning of your upkeep, sacrifice a Human. If you can't, tap Archdemon of Greed and it deals 9 damage to you. 9/9 | |
| Dreadmalkin | B | Creature — Zombie Cat | Menace (This creature can't be blocked except by two or more creatures.) {2}{B}, Sacrifice another creature or planeswalker: Put two +1/+1 counters on Dreadmalkin. 1/1 | 
| Hag of Death's Legion | 2B | Creature — Hag Warlock | At the beginning of your upkeep, create a 1/1 black Skeleton creature token. 2/2 | 
| A-Deal Gone Bad | 3B | Instant | Target creature gets -3/-3 until end of turn. Target player mills three cards. You gain 3 life. | 
| Vexing Radgull | 1U | Creature — Bird Mutant | Flying Whenever Vexing Radgull deals combat damage to a player, that player gets two rad counters if they don't have any rad counters. Otherwise, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.) 1/2 | 
| Rising Populace | 2W | Creature — Human | Whenever another creature or planeswalker you control dies, put a +1/+1 counter on Rising Populace. 2/2 | 
| Oona's Prowler | 1B | Creature — Faerie Rogue | Flying Discard a card: Oona's Prowler gets -2/-0 until end of turn. Any player may activate this ability. 3/1 | 
| Ride the Avalanche | GU | Instant | The next spell you cast this turn can be cast as though it had flash. When you next cast a spell this turn, put X +1/+1 counters on up to one target creature, where X is the mana value of that spell. | 
| Code of Constraint | 2U | Instant | Target creature gets -4/-0 until end of turn. Draw a card. Addendum — If you cast this spell during your main phase, tap that creature and it doesn't untap during its controller's next untap step. |