Dalamadur, Serpent Emperor

Menace, feast, trample
Mysterious Energies - Creatures opponent control get -3/-0 while Dalamadur, Serpent Emperor is on the battlefield.
Devouring Wildfire - When Dalamadur deals combat damage to a player, destroy target nonland permanent.
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A huge elder dragon, massive beyond human comprehension. The only mention of its existence is found in fairy tales, which claim it can warp the very surface of the world and level mountains with a single twitch.