灼熱の裂け目、テクトラン/Tecutlan, the Searing Rift

LegendaryLand - Cave
(Transforms from Brass's Tunnel-Grinder.) <CR>
{T}: Add {R}. <CR>
Whenever you cast a permanent spell using mana produced by Tecutlan, the Searing Rift, discover X, where X is that spell's mana value.

LegendaryLand - Cave
(Transforms from Brass's Tunnel-Grinder.) <CR>
{T}: Add {R}. <CR>
Whenever you cast a permanent spell using mana produced by Tecutlan, discover X, where X is that spell's mana value.