Brass’s Tunnel-Grinder (Extended Art) – 373: The Lost Caverns of Ixalan

• Rarity: R
• Number: 373
• SubType: Legendary Artifact // Legendary Land — Cave

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.

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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.