In late game damages ramp up a lot because scaling champs and ADC reach their peak. At that point the small amount of armor or mr aatrox can build start to not really matter and if you get cc at the wrong place you just get deleted. He has very good sustain, especially with the Goredrinker build, you can easily last 5/6 seconds with decent HP. I usually take lethality tho, it's funnier just deleting everyone or getting deleted and getting flamed to death. The champ is extremely strong overall, excellent teamfighter, self peel, peel for others , decent splitpusher, decent 1v1, decent tankiness for a fighter, very good mobility. Kit alone one of the best champs imo.