Well, Rick loves to mirror events that occurred in the myths. This one calls on the one about the first time Otis and Ephiliates tried to overthrow Olympus. Ares rushed out immediately to fight them, typical, if you ask me, and the giants simply regarded him like an annoying fly, and crammed the little arrogant god into a jar, knowing that he wouldn't have a chance He starved in there for a while, and he almost died, until clever Hermes got him out.

So giants can kill gods?^

If you bind them in unbreakable metal chains and leave them on a jar for a few years without food, water, or any contact with the outside world, yes^