Tony Taurus and Dr. Tremata are "immune to damage from heroes", in light of the Golems (and anything else that might come along) should that now read "immune to damage from hero targets"? (not that I can think of a reason to kill them off right now... oh, Cyro Bot would kill them)
I asked this same thing during playtest. Yes, they're immune to damage from hero targets, it's one of the errata from the playtest forums.