Each player puts a vow counter on a creature they control and sacrifices the rest. Each of those creatures can't attack you or a planeswalker you control for as long as it has a vow counter on it.
Near Mint - $0.40
Lightly Played - $0.30
Moderately Played - $0.30
Heavily Played - $0.30
Damaged - $0.20
Near Mint Spanish - $0.40
Lightly Played Spanish - $0.30
Moderately Played Spanish - $0.30
Heavily Played Spanish - $0.30
Damaged Spanish - $0.20