M:tG card similarity search
2R · Artifact
Whenever you cast an instant or sorcery spell, put a charge counter on Geistflame Reservoir. {1}{R}, {T}, Remove any number of charge counters from Geistflame Reservoir: It deals that much damage to any target. {1}{R}, {T}: Exile the top card of your library. You may play that card this turn.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Trigon of Infestation | 4 | Artifact | Trigon of Infestation enters the battlefield with three charge counters on it. {G}{G}, {T}: Put a charge counter on Trigon of Infestation. {2}, {T}, Remove a charge counter from Trigon of Infestation: Create a 1/1 green Phyrexian Insect creature token with infect. | 
| Nivix, Aerie of the Firemind | Land | {T}: Add {C}. {2}{U}{R}, {T}: Exile the top card of your library. Until your next turn, you may cast it if it's an instant or sorcery spell. | |
| Atmosphere Surgeon | 1U | Creature — Phyrexian Wizard | Whenever you cast a noncreature spell, put an oil counter on Atmosphere Surgeon. Remove an oil counter from Atmosphere Surgeon: Target creature gains flying until end of turn. Activate only as a sorcery. 2/1 | 
| Golem Foundry | 3 | Artifact | Whenever you cast an artifact spell, you may put a charge counter on Golem Foundry. Remove three charge counters from Golem Foundry: Create a 3/3 colorless Golem artifact creature token. | 
| Vulshok Factory | 2R | Artifact | {T}: Add {R}. Put a charge counter on Vulshok Factory. {2}{R}, {T}, Sacrifice Vulshok Factory: Create an X/X colorless Golem artifact creature token with haste, where X is the number of charge counters on Vulshok Factory. Activate only as a sorcery. | 
| Grindclock | 2 | Artifact | {T}: Put a charge counter on Grindclock. {T}: Target player mills X cards, where X is the number of charge counters on Grindclock. | 
| Jinxed Choker | 3 | Artifact | At the beginning of your end step, target opponent gains control of Jinxed Choker and puts a charge counter on it. At the beginning of your upkeep, Jinxed Choker deals damage to you equal to the number of charge counters on it. {3}: Put a charge counter on Jinxed Choker or remove one from it. | 
| Shrine of Limitless Power | 3 | Artifact | At the beginning of your upkeep or whenever you cast a black spell, put a charge counter on Shrine of Limitless Power. {4}, {T}, Sacrifice Shrine of Limitless Power: Target player discards a card for each charge counter on Shrine of Limitless Power. | 
| Gemstone Array | 4 | Artifact | {2}: Put a charge counter on Gemstone Array. Remove a charge counter from Gemstone Array: Add one mana of any color. | 
| Culling Dais | 2 | Artifact | {T}, Sacrifice a creature: Put a charge counter on Culling Dais. {1}, Sacrifice Culling Dais: Draw a card for each charge counter on Culling Dais. |