At the beginning of your end step, create a 0/0 red Gremlin artifact creature token. Put X +1/+1 counters on it, where X is the number of differently named artifact tokens you control.
NM-Mint - $0.30
Lightly Played - $0.30
Moderately Played - $0.30
Heavily Played - $0.20
Damaged - $0.20
NM-Mint Non English - $0.30
Lightly Played Non English - $0.30
Moderately Played Non English - $0.30
Heavily Played Non English - $0.20
Damaged Non English - $0.20
Foil Prices
NM-Mint Foil - $0.30
Lightly Played Foil - $0.30
Moderately Played Foil - $0.30
Heavily Played Foil - $0.20
Damaged Foil - $0.20
NM-Mint Foil Non English - $0.30
Lightly Played Foil Non English - $0.30
Moderately Played Foil Non English - $0.30
Heavily Played Foil Non English - $0.20
Damaged Foil Non English - $0.20