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.
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/645776fd-3ce4-569c-b2cd-5b40373e27c8.png?v=1747837558&width=1445)
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/b5c2da21-f917-5dba-bd22-2f769a3f8615_74e5461d-78ba-4383-8045-3f3458c2b241.png?v=1747837558&width=1445)
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/db940d06-5e3d-4831-a200-de614c093aca_2f01e288-ac6d-4631-b6a4-e6c30568a4b4.png?v=1747837558&width=1445)
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/645776fd-3ce4-569c-b2cd-5b40373e27c8_f5be3957-9e45-46ce-a491-5770efe7b4cb.png?v=1747837558&width=1445)
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/db940d06-5e3d-4831-a200-de614c093aca_560f8666-65c7-45f1-84a1-0916eaa895c1.png?v=1747890518&width=1445)
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/b5c2da21-f917-5dba-bd22-2f769a3f8615.png?v=1747837558&width=1445)
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/db940d06-5e3d-4831-a200-de614c093aca_1b987a54-7ddd-476c-bde9-6c95cff88212.png?v=1747890505&width=1445)
![Brass's Tunnel-Grinder // Tecutlan, The Searing Rift (Extended Art) [The Lost Caverns of Ixalan]](http://goblingames.nz/cdn/shop/files/db940d06-5e3d-4831-a200-de614c093aca_c7107165-93ec-4e02-979c-5ba1ccc4fe93.png?v=1775335964&width=1445)