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 - £10.10
Lightly Played - £8.60
Moderately Played - £7.10
Heavily Played - £5.10
Damaged - £3.10
Near Mint Non English - £10.10
Lightly Played Non English - £8.60
Moderately Played Non English - £7.10
Heavily Played Non English - £5.10
Damaged Non English - £3.10