GravitronX
Skeletron Prime
No mod and I never lie then again my terraria has been buggy ever since I got it.
Or he could just be really sure he saw. But didn't. Ah... memory...What's there to discuss? You're obviously lying.
On topic:
I have terrible luck with getting the picksaw. I have several requirements that have to be fulfilled in order for me to consider the game "finished", and getting that damn thing is one of them. Farming the lihzahrds and flying snakes for power cells gets really tiresome after a while.
I'm positive that if I ever dropped getting the picksaw from the completion requirements, the Golem would drop nothing but picksaws.