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 - £2.40
Lightly Played - £2.00
Moderately Played - £1.70
Heavily Played - £1.20
Damaged - £0.70
Near Mint Non English - £2.40
Lightly Played Non English - £2.00
Moderately Played Non English - £1.70
Heavily Played Non English - £1.20
Damaged Non English - £0.70