When you encounter Interplanar Tunnel, reveal cards from the top of your planar deck until you reveal five plane cards. Put a plane card from among them on top of your planar deck, then put the rest of the revealed cards on the bottom in a random order. (Then planeswalk away from this phenomenon.)
Near Mint - $1.700
Lightly Played - $1.300
Moderately Played - $1.200
Heavily Played - $1.000
Damaged - $900
Near Mint Spanish - $1.700
Lightly Played Spanish - $1.300
Moderately Played Spanish - $1.200
Heavily Played Spanish - $1.000
Damaged Spanish - $900