Hi there!

This for sure was already discussed somewhere in the forum, but I think that I suck with the search engine from this site. Searching on search engines didn't help me as well.
I understand how much the def down debuff affects your damage, specially the last 10% to reach the cap (from 40 to 50%), but my question is: How do we reach the cap?
I can see how it's done in water teams, since cthulu has a C-frame. But without her it seems that only D'Art with charles blast + a 20% A-frame can reach that.
The other teams seen to be stuck at 40%, the exception being dark teams that have SSR Amon + Sniper shot or Dark Amaterasu, leading to 45%.

I gues Yamata no Orochi may help with the last 10%, but I don't think that everyone will be running that eido, (I don't even have it).

So how do we break from the 40%?