Falarnian Dam Tower

{t}:Add 3 mana of any color to your mana
pool. If you control Innestra, World Seeker,
Falarnian Dam Tower produces double that mana instead.
When Innestra first began her "World Seeking"
she showed the humans what they were doing wrong with their energy, The Humans amazed
by this ingenuity quickly invited her into their
most inner workings.