Billy, Invulnerable Dodo

Partner with Lord Mandy, President and Grimm, Reaper of Life & Death(When this creature enters the battlefield, target player may put either Lord Mandy, President or Grimm, Reaper of Life & Death into their hand from their library, then shuffle.)
Hazard 4(When this creature enters the battlefield roll up to 4 six-sided dice. For each die that lands on a 4 or higher, put a Fortune counter on it.)
Remove a fortune counter, {t}: Regenerate this creature.