Warrior/Knight Help I Need A Better Level 40 Warrior Build

I'm a level 41 warrior currently running this build:
https://wynndata.tk/s/dc9w3v

I believe this is a good build for upper 30s, but now I'm just getting pummeled. I frequently had to chug potions while doing the Nesaak Slay Post Quest, and I have lots of trouble even get passed Level 3 of Floor 1 on ToA.

I'm fairly certain the problem is simply that my gear is under-leveled. Problem is, I'm not sure what to replace it with. I know for a tank-y sort of build (which is what I'm going for) health isn't everything, and one should look for elemental defenses. I feel like I took that "health isn't everything" a bit too far though lol.

So I guess what I'm asking is this: Are there any pieces of armor with good health and elemental defenses for around level 40? Or, since builds don't really matter in this stage of the game, perhaps a better question would be what should I look for in armor? Of course health is important but what about defenses? Would a +20 water defense and -20 thunder defense piece of armor be good or bad?

Thanks!

 

https://wynndata.tk/s/y9hvw8
Just take legendary armor pieces that work well with your weapon

 

Okay, thanks! ^^