As Boomstacker enters the battlefield and whenever it attacks, stack two dice on top of it. (All dice must be stacked vertically, one on top of another.) Boomstacker gets +1/+1 for each die in its stack. Boomstacker attacks each combat if able. When the stack falls, sacrifice Boomstacker.
Near Mint - £0.30
Lightly Played - £0.30
Moderately Played - £0.20
Heavily Played - £0.20
Damaged - £0.10
Near Mint Non English - £0.30
Lightly Played Non English - £0.30
Moderately Played Non English - £0.20
Heavily Played Non English - £0.20
Damaged Non English - £0.10