Whenever Spitting Slug blocks or becomes blocked, you may pay {1}{G}. If you do, Spitting Slug gains first strike until end of turn. Otherwise, each creature blocking or blocked by Spitting Slug gains first strike until end of turn.
Near Mint - $3.10
Near Mint Non-English - $3.10
Lightly Played - $2.80
Lightly Played Non-English - $2.80
Played - $2.20
Played Non-English - $2.20
Heavily Played - $1.90
Heavily Played Non-English - $1.90
Damaged - $1.60
Damaged Non-English - $1.60