Treasure Seeker Goblin

Partner with Lord Of Greed (when this creature enters the battlefield target player my put lord of greed into their hand from their library then shuffle.)

At the beginning of each upkeep you may remove
any number of hex counters from creatures you control. add X mana of any color to your mana pool where X is the number of counters removed this way, until the end of turn you don't lose this mana
as steps and phases end.