He did not men to create a blizzard. Not on Easter, not here, not for another three months. But the Easter Bunny does not care, he just sees Jack Frost ruining his holiday. Aster retaliated, he attacked Jack. Jack tried to defend himself, but the ancient rabbit was too overwhelming.
A kick in the gut and Jack was down. Before he could strike again, Jack glowed and changed his form. He turned into a white Pooka. Like Aster, but smaller, very small. Aster took a closer look and realized his mistake. Jack is a kit, a child. And he hurt him. He hurt a child. A kit of his species.
Aster muttered apologies and picked Jack up. He wanted to open a tunnel, bring Jack to his warren and take care of him. Easter, the eggs are alive, they can hide themselves. He just needs to check on some of the bigger patches. The other Pooka, the only one he is aware of, is more important.
As soon as the tunnel opened, Jack jumped out of his arms and ran off. He played dead, or at least faked to have fainted, an old trick of the kits. His fur blended into the white fizz of the blizzard. The blizzard itself got more aggressive. He tried to follow Jack, but Jack just yelled, "Leave me alone!"