When Myr Battlesphere enters the battlefield, create four 1/1 colorless Myr artifact creature tokens. Whenever Myr Battlesphere attacks, you may tap X untapped Myr you control. If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking.
Near Mint - $0.95
Lightly Played - $0.90
Moderately Played - $0.71
Heavily Played - $0.57
Damaged - $0.38
Near Mint Non-English - $0.95
Lightly Played Non-English - $0.90
Moderately Played Non-English - $0.71
Heavily Played Non-English - $0.57
Damaged Non-English - $0.38
Foil Prices
Near Mint Foil - $8.00
Lightly Played Foil - $7.75
Moderately Played Foil - $6.00
Heavily Played Foil - $5.00
Damaged Foil - $3.25
Near Mint Foil Non-English - $8.00
Lightly Played Foil Non-English - $7.75
Moderately Played Foil Non-English - $6.00
Heavily Played Foil Non-English - $5.00
Damaged Foil Non-English - $3.25