Category talk:Yu-Gi-Oh! Ruling Queries

Okay, so my opponent has Ultimate Baseball Kid on the field and he uses his second effect which states that he can send any FIRE monster to the graveyard to inflict 500 points of direct to damage to my lifepoints for each FIRE monster sent to the graveyard. Can he use my FIRE monsters on my side of the field with that effect? Meaning, can he destroy my monsters and inflict 500 damage to me for each monster on my side of the field?

Just seems sketchy. Ultimate Baseball Kid should be banned, or not be rare.