NM (Near Mint)
Near Mint condition cards can show minimal wear from play or handling and will have an unmarked surface, crisp corners, and otherwise pristine edges outside of minimal handling. Near Mint condition cards appear "fresh out of the pack," with edges and surfaces virtually free from all flaws. It is possible that Brand New have minor imperfections when coming straight out of boosters.
LP (Light Play)
Light Played condition cards can have slight border or corner wear, or possibly minor scratches. No major defects are present. Lightly Played condition foils may have slight fading or indications of wear on the card face.
(MP) Moderate Play
Moderately Played condition cards have moderate wear, or flaws apparent to the naked eye. Moderately Played condition cards can show moderate border wear, mild corner wear, scratches , creases or fading, light dirt buildup, or any combination of these defects.
HP (Heavily Played)
Heavily Played condition cards exhibit signs of heavy wear. Heavily Played condition cards may include cards that have creasing, folding, water damage, heavy whitening and heavy border wear.
Heavy Play condition cards will also include:
a) All artist-signed cards that are otherwise in NM / LP or MP condition
b) All Premiere Event stamped cards that are otherwise in NM/LP or MP condition
c) All cards which have been written on by previous owners, but are otherwise in NM/LP or MP Condition
Damaged condition cards show obvious tears, bends, or creases that could make the card illegal for tournament play, even when sleeved. Damaged condition cards have massive border wear, possible writing or major inking (ex. white-bordered cards with black-markered front borders), massive corner wear, prevalent scratching, folds, creases or tears.