You may look at the top card of your library any time.
At the beginning of each combat, you may reveal the top card of your library. If you reveal a creature card this way, Vesuvan Drifter becomes a copy of that card until end of turn, except it has flying.
NM-Mint Foil - $2.60
Lightly Played Foil - $2.50
Moderately Played Foil - $2.40
Heavily Played Foil - $2.10
Damaged Foil - $1.70
NM-Mint Foil Non English - $2.60
Lightly Played Foil Non English - $2.50
Moderately Played Foil Non English - $2.40
Heavily Played Foil Non English - $2.10
Damaged Foil Non English - $1.70