Druid of Endless Growth

Worship 1 (As this creature enters the battlefield, you may tap up to one other untapped creature you control. This creature enters the battlefield with a +1/+1 counter on it for each creature tapped this way.)
{t}, Remove X +1/+1 counters from amongst creatures you control: Add X mana in any combination of {b}, {g} or {w} to your mana pool.
"This world will be devoured by its own flesh."