Jenva, Storm Caller

At the beginning of your upkeep, put a
storm counter on Jenva, Storm Caller
{t}: Remove a storm counter from Jenva,
Storm caller. Jenva deals 3 damage to any target.
When Jenva has ten storm counters, exile her,
then create a legendary 10/10 red and blue
elemental creature token with Flying, Trample,
and Shroud called The eternal Storm onto the battlefield.