Shrieking Legiana

Flying,
Shrieking Legiana enters the game with 3 {e} on it.
Each turn put a {e} on it, twice that amount if you control a white or blue Weather Enchantment. As
long as Shrieking Legiana has 3 or more {e} it
gains Double Strike and Frenzy (If not blocked Shrieking Legiana gets +X/+0 where X is the
number of {e} in it.)
Remove any number of {e}, deal damage equal to
that amount to target creature or player.