M:tG card similarity search
4 · Artifact
{2}, {T}: Put a mire counter on target non-Swamp land. That land is a Swamp for as long as it has a mire counter on it. Activate only during your upkeep. When Cyclopean Tomb is put into a graveyard from the battlefield, at the beginning of each of your upkeeps for the rest of the game, remove all mire counters from a land that a mire counter was put onto with Cyclopean Tomb but that a mire counter has not been removed from with Cyclopean Tomb.
| Name | Mana | Type | Text |
|---|---|---|---|
| Withercrown | 1B | Enchantment — Aura | Enchant creature Enchanted creature has base power 0 and has "At the beginning of your upkeep, you lose 1 life unless you sacrifice this creature." |
| Dauntless Survivor | 1G | Creature — Human Warrior | When Dauntless Survivor enters the battlefield, put a +1/+1 counter on target creature. 1/1 |
| Sphere of Annihilation | XB | Artifact | Sphere of Annihilation enters the battlefield with X void counters on it. At the beginning of your upkeep, exile Sphere of Annihilation, all creatures and planeswalkers with mana value less than or equal to the number of void counters on it, and all creature and planeswalker cards in graveyards with mana value less than or equal to the number of void counters on it. |
| Charging Cinderhorn | 3R | Creature — Elemental Ox | Haste At the beginning of each player's end step, if no creatures attacked this turn, put a fury counter on Charging Cinderhorn. Then Charging Cinderhorn deals damage equal to the number of fury counters on it to that player. 4/2 |
| Mysterious Egg | 1 | Creature — Egg | Whenever this creature mutates, put a +1/+1 counter on it. 0/2 |
| Pentavus | 7 | Artifact Creature — Construct | Pentavus enters the battlefield with five +1/+1 counters on it. {1}, Remove a +1/+1 counter from Pentavus: Create a 1/1 colorless Pentavite artifact creature token with flying. {1}, Sacrifice a Pentavite: Put a +1/+1 counter on Pentavus. 0/0 |
| Eye of Doom | 4 | Artifact | When Eye of Doom enters the battlefield, each player chooses a nonland permanent and puts a doom counter on it. {2}, {T}, Sacrifice Eye of Doom: Destroy each permanent with a doom counter on it. |
| Marchesa, Resolute Monarch | Legendary Creature — Human Noble | Menace, deathtouch Whenever Marchesa, Resolute Monarch attacks, remove all counters from up to one target permanent. At the beginning of your upkeep, if you haven't been dealt combat damage since your last turn, you draw a card and you lose 1 life. 3/6 | |
| Tenacious Pup | G | Creature — Wolf | When Tenacious Pup enters the battlefield, you gain 1 life. You get a one-time boon with "When you cast a creature spell, that creature enters the battlefield with an additional +1/+1 counter, trample counter, and vigilance counter on it." 1/2 |
| Thundering Mightmare | 4G | Creature — Horse Spirit | Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.) As long as Thundering Mightmare is paired with another creature, each of those creatures has "Whenever an opponent casts a spell, put a +1/+1 counter on this creature." 3/3 |