When Battle Myrsphere enters the battlefield, reveal cards from the top of your library until you reveal a battle card. Put it onto the battlefield, and the rest on the bottom of your library in a random order.
Whenever Battle Myrsphere attacks, you may tap X untapped battles you control (so they're oriented like a regular Magic card). If you do, CARDNAME gets +X/+0 until end of turn and deals X damage to the player or permanent.
Near Mint - $374.00
Lightly Played - $355.25
Moderately Played - $299.25
Heavily Played - $224.50
Damaged - $187.00
Near Mint Non-English - $374.00
Lightly Played Non-English - $355.25
Moderately Played Non-English - $299.25
Heavily Played Non-English - $224.50
Damaged Non-English - $187.00