When Brass's Tunnel-Grinder enters the battlefield, discard any number of cards, then draw that many cards plus one.
At the beginning of your end step, if you descended this turn, put a bore counter on Brass's Tunnel-Grinder. Then if there are three or more bore counters on it, remove those counters and transform it. (You descended if a permanent card was put into your graveyard from anywhere.)
Reverse Type:
Legendary Land — Cave
(Transforms from Brass's Tunnel-Grinder.)
T: Add R.
Whenever you cast a permanent spell using mana produced by Tecutlan, the Searing Rift, discover X, where X is that spell's mana value.
NM-Mint - $1.90
Lightly Played - $1.80
Moderately Played - $1.70
Heavily Played - $1.50
Damaged - $1.20
NM-Mint Non English - $1.90
Lightly Played Non English - $1.80
Moderately Played Non English - $1.70
Heavily Played Non English - $1.50
Damaged Non English - $1.20
Foil Prices
NM-Mint Foil - $2.60
Lightly Played Foil - $2.40
Moderately Played Foil - $2.30
Heavily Played Foil - $2.10
Damaged Foil - $1.70
NM-Mint Foil Non English - $2.60
Lightly Played Foil Non English - $2.40
Moderately Played Foil Non English - $2.30
Heavily Played Foil Non English - $2.10
Damaged Foil Non English - $1.70