Jernla, Queen of the elements

Flying, Hexproof
When Jernla, Queen of the elements enters the battlefield choose a color, whenever a spell is cast
of that color put a +1/+1 counter on Jernla,
Queen of the elements and scry 1.
When Jernla, Queen of the elements enters the battlefield choose a color, destroy all creatures of
that color on the battlefield.
{t} add one mana of any color