name: Brass's Tunnel-Grinder // Tecutlan, the Searing Rift
printings: LCI, PLCI
text: (Transforms from Brass's Tunnel-Grinder.)\n{T}: Add {R}.\nWhenever you cast a permanent spell using mana produced by Tecutlan, the Searing Rift, discover X, where X is that spell's mana value.