Count Visroy the IXth, Buyer

Whenever a player casts a permanent spell they
may instead have you take control of it and gain
gold tokens equal to the converted mana cost.
At the beginning of your upkeep, you may have
target player gain control of
target permanent you control. Then you create
gold equal to the converted mana cost of that permanent.
At the beginning of your pre-combat main phase create X treasures where X is equal to the number of permanents you control but don't own.