When Niv-Mizzet Reborn enters the battlefield, reveal the top ten cards of your library. For each color pair, choose a card that's exactly those colors from among them. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.
NM-Mint Foil - $5.10
Lightly Played Foil - $4.60
Moderately Played Foil - $4.10
Heavily Played Foil - $3.60
Damaged Foil - $2.50
NM-Mint Foil Non English - $5.10
Lightly Played Foil Non English - $4.60
Moderately Played Foil Non English - $4.10
Heavily Played Foil Non English - $3.60
Damaged Foil Non English - $2.50