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.
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 - $3.40
Lightly Played - $3.10
Played - $2.40
Heavily Played - $2.10
Damaged - $1.70
Near Mint Non-English - $3.40
Lightly Played Non-English - $3.10
Played Non-English - $2.40
Heavily Played Non-English - $2.10
Damaged Non-English - $1.70
Foil Prices
Near Mint Foil - $3.40
Lightly Played Foil - $3.10
Played Foil - $2.40
Heavily Played Foil - $2.10
Damaged Foil - $1.70
Near Mint Foil Non-English - $3.40
Lightly Played Foil Non-English - $3.10
Played Foil Non-English - $2.40
Heavily Played Foil Non-English - $2.10
Damaged Foil Non-English - $1.70