If a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead.
If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.
Near Mint - £1.40
Lightly Played - £1.20
Moderately Played - £1.00
Heavily Played - £0.70
Damaged - £0.50
Near Mint Non English - £1.40
Lightly Played Non English - £1.20
Moderately Played Non English - £1.00
Heavily Played Non English - £0.70
Damaged Non English - £0.50