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.
Near Mint - $3.90
Lightly Played - $3.50
Played - $2.70
Heavily Played - $2.30
Damaged - $2.00
Near Mint Non-English - $3.90
Lightly Played Non-English - $3.50
Played Non-English - $2.70
Heavily Played Non-English - $2.30
Damaged Non-English - $2.00
Foil Prices
Near Mint Foil - $3.90
Lightly Played Foil - $3.50
Played Foil - $2.80
Heavily Played Foil - $2.40
Damaged Foil - $2.00
Near Mint Foil Non-English - $3.90
Lightly Played Foil Non-English - $3.50
Played Foil Non-English - $2.80
Heavily Played Foil Non-English - $2.40
Damaged Foil Non-English - $2.00