So my baby pets need to beat him, it has been a while and I have forgotten what I used. I have been looking at Mr Cools blog but not having luck with the weapons he mentioned. My pets are tier 10

Health: 1645 / 1645 Strength: 1634 Defense: 1632 Speed: 1634

AP: 83 Any help is greatly appreciated

I'd say- If you have it Gelatin Slayer to block dark and deal light damage.

Maleria's Cursed Arm Bangle, Blocks a large spread of icons

Acidtongue, Aspersion, Infinite combo legendaries work as damage dealers and blockers, since healing doesn't work against him anyway no need to worry about it.

Rainbow Vortex or other OPB All Blockers can be decent to buy a turn

I used the Acidtongue/Aspersion combo and STS/RV/Freezer to beat CEtT in like tier 7, but with more HP.

Are you still trying to use any freezing or healing weapons/scrolls/mods? Freezing and Heal are disabled so replace all those shrieks and parched baguettes if your still using them.

Edit:

I just got 10 wins pretty easily with a T8 with the Acidtongue/Aspersion combo. Just make sure to use up your 4 Mod Slots. Health: 1382 Strength: 1402 Defense: 1087 Speed: 641 AP: 49

With your AP Spacial Abyss scrolls are -easy- option since it shouldn't take too many turns for a win if you don't have the Aspersion/Acidtongue. They're once per battle @ 18AP to block 75 of each icon but dark - no impact on the negative 5% heal since healing is disabled.

thankyou. I figured out the tier 10 and got my wins. Now trying to get my tier 9 wins will fiddle around with crystals.