My question is on the 1800 point Galactus, since his pulse wave does 3 damage would it destroy any objects in range? Also on an indoor map, would every wall that is targeted by pulse wave be destroyed? I think that it would because it takes 3 damage to destroy an object or portion of the wall. What are your thoughts.

PW does not target anything. Also, it deals damage to figures only, not terrain. As such, objects and walls are not effected by PW.

I knew I should of read the power description again before posting. Thank you Psylockeslover for the reminder. But now don't you think that if someone the size and power of Galactus Pulse Waved walls would come crumbling down?