Queen of Squirrels

When Queen of Squirrels comes into play, create
four 1/1 green Squirrel creature tokens.
Whenever you discard a card, or a card is played
or returned from the graveyard, create a 1/1
green Squirrel creature tokens.
Squirrels you control get +1/+1 and Hexproof.
"The only real human royalty known to survive
on Ulgotha."