No third-party market for this printing. Some promo runs (Salvat, McDonald's, Trainer Kits) do clear at private sales — record your own observation to anchor a price for this card.
Flash
As this Equipment enters, choose a creature you control it could be attached to. If you do, it enters attached to that creature.
Equipped creature gets +1/+1.
Equip {1}
Legalities
tlrlegal
duellegal
brawlnot legal
pennylegal
PreDH
Rulings · 2
wotc
Grifter's Blade must enter attached to a creature you control, if possible.
wotc
If you don't control a creature Grifter's Blade could be attached to, it simply enters unattached.
Notes
No price observations yet — this card is in the canonical catalog but a refresh hasn't seen a market price.