The heroes and villains of the MCUA have been depowered, but what many fans dont know is that the depowering has stayed true to the comics. From what we have seen, there is a formula used wqhen depowering heroes, and if we know this formula we can predict how powerful future characters will be, and quantify the power level of existing featless characters.
THE FORMULA SO FAR
Planet buster = City buster
City buster = building buster
We have seen nthis proven by the feats of Thor and Iron man, now if we use this formula for higher tiers of power we get...
THE REVISED FORMULA
Universe buster = Galaxy buster
Galaxy buster = Planet buster
Planet buster = City buster
City buster = Building buster
Now all we need to do is put the formula into action.
THE FORMULA IN ACTION
Thanos IG = Galaxy buster
Celestials = Planet buster
Odin = Planet buster
Thor = City buster
Hulk = City/building buster
Iron man = Building buster
I hope this has been informative.