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 - $0.20
Lightly Played - $0.20
Played - $0.20
Heavily Played - $0.20
Damaged - $0.10
Near Mint Non-English - $0.20
Lightly Played Non-English - $0.20
Played Non-English - $0.20
Heavily Played Non-English - $0.20
Damaged Non-English - $0.10
Foil Prices
Near Mint Foil - $0.00
Lightly Played Foil - $0.00
Played Foil - $0.00
Heavily Played Foil - $0.00
Damaged Foil - $0.00
Near Mint Foil Non-English - $0.00
Lightly Played Foil Non-English - $0.00
Played Foil Non-English - $0.00
Heavily Played Foil Non-English - $0.00
Damaged Foil Non-English - $0.00