Myr Battlesphere

Artifact Creature — Myr Construct

When this creature enters, create four 1/1 colorless Myr artifact creature tokens.
Whenever this creature attacks, you may tap X untapped Myr you control. If you do, this creature gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking.

CMC
7
Mana cost
{7}
Color identity
C
Rarity
rare
Set
Phyrexia: All Will Be One Commander
Price
$0.37
EDHREC rank
#867
Buy on TCGplayer
Myr Battlesphere card art
Myr Battlesphere lands and immediately puts 4/1 worth of tokens on the board, swings as a 7/7 with those tokens tapped, and slots into Time Sieve loops that generate infinite turns. Seven mana is the real cost — in any deck that isn't specifically built around it, that's a steep ask for a creature that dies to a single removal spell.

Best Commanders

Commanders with the highest synergy

01
Urtet, Remnant of Memnarch

Urtet, Remnant of Memnarch

92.5% of decks · synergy 0.90

Urtet, Remnant of Memnarch untaps all Myr at your upkeep, which means the four tokens Myr Battlesphere produces fuel both its combat trigger and the commander's five-color mana engine simultaneously — it's not a support card here, it's a central gear in the machine.

02
Dr. Eggman

Dr. Eggman

76.9% of decks · synergy 0.75

Dr. Eggman's ability to copy artifacts makes Myr Battlesphere an obvious target — a second Battlesphere doubles the token production and the attack trigger, snowballing the board faster than opponents can answer.

03
Alibou, Ancient Witness

Alibou, Ancient Witness

64.5% of decks · synergy 0.61

Alibou, Ancient Witness deals damage equal to the number of tapped artifacts whenever you attack, and Myr Battlesphere taps four tokens in addition to itself on the swing — five triggers is a meaningful chunk of damage or scry.

04
Feldon of the Third Path

Feldon of the Third Path

64.2% of decks · synergy 0.60

Feldon of the Third Path reanimates a copy of Myr Battlesphere from the graveyard at the cost of three mana, generating a fresh wave of four tokens every turn cycle even after the original has been answered.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander
legacy
modern
pioneer
standard
vintage
pauper
oathbreaker

Commander is where Myr Battlesphere earns its keep — the format's slower pace makes seven mana acceptable, and the combination of immediate board presence and combo potential with Time Sieve gives it a clear reason to exist in the right shell. In Legacy and Vintage it's legal but entirely unplayed; the formats move too fast for a seven-mana creature that doesn't end the game on its own. Modern is the same story — the card sees no competitive play there despite being legal. Oathbreaker follows the same logic as Commander: slow enough to cast it, but the 60-card singleton constraint means only dedicated artifact strategies will bother.

Key Combos

Combo lines featuring this card

Price Context

Current price

$0.37 bulk tier

At $0.37, Myr Battlesphere is deep bulk — widespread reprints have kept the price at the floor and there's no reason to expect it to climb. Pick up as many copies as you need without hesitation; you'll find them in bulk bins before you find them out of stock.

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