Whenever you cast a red spell, if Runaway Steam-Kin has fewer than three +1/+1 counters on it, put a +1/+1 counter on Runaway Steam-Kin. Remove three +1/+1 counters from Runaway Steam-Kin: Add {R}{R}{R}.
NM-Mint Foil - $4.60
Lightly Played Foil - $4.10
Moderately Played Foil - $3.70
Heavily Played Foil - $3.20
Damaged Foil - $2.30
NM-Mint Foil Non English - $4.60
Lightly Played Foil Non English - $4.10
Moderately Played Foil Non English - $3.70
Heavily Played Foil Non English - $3.20
Damaged Foil Non English - $2.30