Lightning Lord's Influence

Enchant Land
Enchanted Land has "{t}: add {u}, {r}, or {g} to your mana pool"
Enchanted land has "Whenever you use mana
form this land to cast an instant, sorcery, or
artifact spell, each opponent takes damage equal
to the highest CMC among creatures you control"
"The dragon Elves mutant hordes are great and
all, but no amount of magic mutation will protect them
against the power of our curiosity."