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.
Queen Creek Near Mint - $1.00
Queen Creek Lightly Played - $0.95
Queen Creek Moderately Played - $0.85
Queen Creek Heavily Played - $0.75
Queen Creek Damaged - $0.70
Tempe Near Mint - $1.00
Tempe Lightly Played - $0.95
Tempe Moderately Played - $0.85
Tempe Heavily Played - $0.75
Tempe Damaged - $0.70