Shellshock

Instant

For each opponent, choose up to one target creature that player controls. Shellshock deals X damage to each of those creatures. You create a Mutagen token for each creature dealt damage this way. (They're artifacts with "{1}, {T}, Sacrifice this token: Put a +1/+1 counter on target creature. Activate only as a sorcery.")

CMC
1
Mana cost
{X}{R}
Color identity
R
Rarity
rare
Set
Teenage Mutant Ninja Turtles Eternal
Price
$0.28
EDHREC rank
#12014
Buy on TCGplayer
Shellshock card art
Shellshock deals damage to each creature without flying — a mass ground-sweep attached to a sorcery that scales with how many permanents hit the board. Leonardo, the Balance // Michelangelo, the Heart runs it because the Ninja tribal engine keeps creatures entering and exiting, making that damage threshold trivially achievable. Bulk rate, real payoff.

Best Commanders

Commanders with the highest synergy

01
Leonardo, the BalanceMichelangelo, the Heart

Leonardo, the Balance // Michelangelo, the Heart

47.4% of decks · synergy 0.43

Leonardo, the Balance // Michelangelo, the Heart appears in nearly half of all registered lists for this commander, because Shellshock's damage rider synergizes directly with the ninjutsu loop — flood the board through combat tricks, then convert that activity into a sweeper that clears blockers while your fliers stay untouched.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander
legacy
modern
pioneer
standard
vintage
pauper
oathbreaker

Shellshock is legal in Commander, Legacy, Vintage, and Oathbreaker — and Commander is realistically the only home that wants it. In Legacy and Vintage the effect is too slow and too narrow against the threats that actually matter in those formats. Commander is where Shellshock earns its slot: multiplayer tables run wide with ground creatures, the damage threshold is easy to meet in a format where permanents pile up fast, and the card rewards decks that already generate a lot of enter-the-battlefield activity. Oathbreaker is a functional option for the right aggressive shell, but the Commander application is the clear primary use case.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.28 bulk tier

At $0.28, Shellshock is firmly bulk — you're paying almost nothing for a situational sweeper effect. The price reflects its narrow application, so it won't appreciate meaningfully unless a high-profile deck puts it on the map.

Explore

Mentioned

  • Leonardo, the Balance // Michelangelo, the Heart

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