Complex sentence: Fungus is virtually immortal, and will always reappear after losing a fight against Kaze, though as a 1/10th miniature of himself and must wait for some time before regaining his original stature.
Split into simpler sentences: Fungus is virtually immortal, and will always reappear after losing a fight against Kaze. After dying, Fungus is reborn as a 1/10th miniature of himself and must wait for some time before regaining his original stature.