If target creature has toughness 5 or greater, it gets +4/-4 until end of turn. Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1.
Near Mint - £9.20
Lightly Played - £7.80
Moderately Played - £6.40
Heavily Played - £4.60
Damaged - £2.80
Near Mint Non English - £9.20
Lightly Played Non English - £7.80
Moderately Played Non English - £6.40
Heavily Played Non English - £4.60
Damaged Non English - £2.80