Regenerating Hydra

When Regenerating Hydra dies, create two 4/4
green Hydra creature tokens with "When this
creature dies, create two 2/2 green Hydra
creature tokens with 'When this creature dies,
create two 1/1 green Hydra creature tokens.'''
"Don't cut off a single head." ~Aianor Aales
"What's the worst that could happen?" ~Umbryx