Elora, Simic Biomaster

{g}{u}, {t}: Remove X +1/+1 counters from Elora,
Simic Biomaster, put X 1/1 green
and blue mutant druid creature tokens with
"{t}: Add {g} or {u} to your mana pool" onto
the battlefield.
Evolve (Whenever a creature enters the battlefield
under your control, if that creature has greater power
or toughness than this creature, put a +1/+1 counter
on this creature.)