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Coretapper

Artifact Creature — Myr

{T}: Put a charge counter on target artifact.
Sacrifice this creature: Put two charge counters on target artifact.

CMC
2
Mana cost
{2}
Color identity
C
Rarity
uncommon
Set
Darksteel
Price
$0.41
EDHREC rank
#6106
Buy on TCGplayer
Coretapper card art
Coretapper puts two charge counters on an artifact immediately and doubles as a sacrifice outlet to add even more — that's a lot of counter density on a two-mana body. Inspirit, Flagship Vessel decks run it in over 65% of lists because the engine feeds directly off that counter accumulation, and the verdict is simple: if your deck cares about charge counters, Coretapper is close to mandatory.

Best Commanders

Commanders with the highest synergy

01
Inspirit, Flagship Vessel

Inspirit, Flagship Vessel

65.9% of decks · synergy 0.62

Inspirit, Flagship Vessel wants as many charge counters loaded onto artifacts as fast as possible, and Coretapper delivers two on entry plus a third when you sacrifice it — that's three counters from one two-mana creature, which is exactly the fuel Inspirit needs to fire its abilities ahead of schedule.

02
Dawnsire, Sunstar Dreadnought

Dawnsire, Sunstar Dreadnought

55.4% of decks · synergy 0.53

Dawnsire, Sunstar Dreadnought similarly demands a high density of charge counters to power its triggered abilities, and Coretapper's ability to stockpile counters both on ETB and through sacrifice makes it one of the most efficient feeders in the 55% of Dawnsire lists that include it.

03
Kilo, Apogee Mind

Kilo, Apogee Mind

38.5% of decks · synergy 0.34

Kilo, Apogee Mind proliferates counters across the board, so Coretapper's initial two-counter deposit gets multiplied quickly — every proliferate trigger squeezes more value out of what Coretapper already placed, making it a clean inclusion in roughly 39% of Kilo lists.

04
Tekuthal, Inquiry Dominus

Tekuthal, Inquiry Dominus

14.8% of decks · synergy 0.14

Tekuthal, Inquiry Dominus doubles proliferate triggers, which means the counters Coretapper places are effectively a seed that Tekuthal's engine compounds — about 15% of Tekuthal lists pick it up specifically for that multiplier effect on an already counter-hungry gameplan.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern legal
pioneer not legal
standard not legal
vintage legal
pauper not legal
oathbreaker legal

Coretapper is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but its real home is Commander — charge-counter synergies rarely reach the density needed to justify a slot in competitive 60-card formats. In Legacy and Vintage, the card is technically playable but essentially invisible; the artifact synergy decks in those formats want speed and redundancy that a 1/1 body doesn't provide. Modern is theoretically possible for niche artifact builds, but again, Coretapper has never found traction there. Commander is where the card earns its keep: the singleton format rewards dedicated engines, and any commander built around charge counters will find Coretapper doing real work on turn two.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.41 bulk tier

At $0.41, Coretapper sits firmly in bulk territory — it's a role-player, not a chase card, and the price reflects that. It holds that floor reliably because the charge-counter decks that want it genuinely need it, so demand stays steady without ever spiking.

Explore

Sources

Mentioned

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Updated . Data from Scryfall, EDHREC, and Commander Spellbook.