Umowan, the Loamwatcher

Umowan, the Loamwatcher enters the battlefield with a number of lifeblood counters equal to the number of Forests you control.
At the beginning of your upkeep, put a lifeblood counter on Umowan.
{2}{g}{g}, Remove a lifeblood counter from
Umowan: Create a 1/1 green Dryad creature token for each untapped Forest you control.