M:tG card similarity search
· Plane — Earth
When you planeswalk to Antarctic Research Base and at the beginning of your upkeep, investigate. Whenever chaos ensues, put X +1/+1 counters on target creature you control, where X is the number of artifacts you control. It becomes a Plant in addition to its other types.
| Name | Mana | Type | Text |
|---|---|---|---|
| Primordial Hydra | XGG | Creature — Hydra | Primordial Hydra enters the battlefield with X +1/+1 counters on it. At the beginning of your upkeep, double the number of +1/+1 counters on Primordial Hydra. Primordial Hydra has trample as long as it has ten or more +1/+1 counters on it. 0/0 |
| Esper | Plane — Alara | Artifact spells cost {1} less to cast. Whenever chaos ensues, creatures you control that are white, blue, and/or black become artifacts in addition to their other types until end of turn. Then each artifact creature you control gains vigilance, menace, and lifelink until end of turn. | |
| 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. |
| Blight Pile | 1B | Creature — Phyrexian | Defender {2}{B}, {T}: Each opponent loses X life, where X is the number of creatures with defender you control. 3/3 |
| Planequake | XR | Sorcery | Planequake deals X damage to each creature without flying and each planeswalker. If X is 10 or more, open the "Uncovered Cavern" plot booster. |
| Forgotten Harvest | 1G | Enchantment | At the beginning of your upkeep, you may exile a land card from your graveyard. If you do, put a +1/+1 counter on target creature. |
| Leyline Invocation | 5G | Sorcery | Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it, where X is the number of lands you control. |
| Memnarch | 7 | Legendary Artifact Creature — Wizard | {1}{U}{U}: Target permanent becomes an artifact in addition to its other types. (This effect lasts indefinitely.) {3}{U}: Gain control of target artifact. (This effect lasts indefinitely.) 4/5 |
| The Rack | 1 | Artifact | As The Rack enters the battlefield, choose an opponent. At the beginning of the chosen player's upkeep, The Rack deals X damage to that player, where X is 3 minus the number of cards in their hand. |
| Nils, Discipline Enforcer | 2W | Legendary Creature — Human Cleric | At the beginning of your end step, for each player, put a +1/+1 counter on up to one target creature that player controls. Each creature with one or more counters on it can't attack you or planeswalkers you control unless its controller pays {X}, where X is the number of counters on that creature. 2/2 |