Brass's Tunnel-Grinder [The Lost Caverns of Ixalan - 135]

Brass's Tunnel-Grinder Game: Magic: The Gathering Set: The Lost Caverns of Ixalan Rarity: Rare Condition: Near Mint Card Type: Legendary, Artifact, //, Legendary, Land Card Color: R Mana Cost: 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.) // Tecutlan, the Searing Rift (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.