Solaire, Mana Rock Progenitor

Eminence - Whenever an opponent taps a non-
land permanent for mana, create a treasure token.
When Solaire, Mana Rock Progenitor enters the
battlefield, target opponent becomes monarch.
Whenever the monarch taps a nonland
permanent for mana, it produces double instead.
{t} Sacrifice three permanents: Exile target
permanent.
"In the beginning, there was Solaire. And in the end,
only He Remained." - Erebos