Bjoern, Empty Minded

Menace
Planeswalker abilities can't be activated, unless
their controler sacrifices a creature.
Whenever an enchantment enters the battlefield
under an opponents control, that opponent loses
3 life.
Whenever an enchantment leaves the battlefield,
you gain 3 life.
Whenever Bjoern, Empty Minded deals damage
to an opponent, that opponent creates a fractal.