M:tG card similarity search
XX · Legendary Creature — Spirit Naga
Omarthis, Ghostfire Initiate enters the battlefield with X +1/+1 counters on it. Whenever you put one or more +1/+1 counters on another colorless creature, you may put a +1/+1 counter on Omarthis. When Omarthis dies, manifest a number of cards from the top of your library equal to the number of counters on it. 0/0
| Name | Mana | Type | Text |
|---|---|---|---|
| Hoofprints of the Stag | 1W | Tribal Enchantment — Elemental | Whenever you draw a card, you may put a hoofprint counter on Hoofprints of the Stag. {2}{W}, Remove four hoofprint counters from Hoofprints of the Stag: Create a 4/4 white Elemental creature token with flying. Activate only during your turn. |
| A-Pyre-Sledge Arsonist | 2R | Creature — Viashino Shaman | {1}, {T}: Pyre-Sledge Arsonist deals X damage to any target, where X is the number of permanents you've sacrificed this turn. 2/3 |
| Earthen Goo | 2R | Creature — Ooze | Trample Cumulative upkeep {R} or {G} (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.) Earthen Goo gets +1/+1 for each age counter on it. 2/2 |
| Ossuary Rats | 5B | Creature — Rat | When Ossuary Rats enters the battlefield, it deals X damage to target creature or planeswalker an opponent controls, where X is the number of creature cards in your graveyard. 3/2 |
| Deathgrip | BB | Enchantment | {B}{B}: Counter target green spell. |
| Wave of Terror | 2B | 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 draw step, destroy each creature with mana value equal to the number of age counters on Wave of Terror. They can't be regenerated. |
| Keldon Warlord | 2RR | Creature — Human Barbarian | Keldon Warlord's power and toughness are each equal to the number of non-Wall creatures you control. */* |
| Rise of the Dread Marn | 2B | Instant | Create X 2/2 black Zombie Berserker creature tokens, where X is the number of nontoken creatures that died this turn. Foretell {B} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.) |
| Hypnotic Swirly Disc | Artifact — Contraption | Whenever you crank Hypnotic Swirly Disc, target player mills X cards, where X is the number of creatures you control. | |
| Nightmare | 5B | Creature — Nightmare Horse | Flying (This creature can't be blocked except by creatures with flying or reach.) Nightmare's power and toughness are each equal to the number of Swamps you control. */* |