I'm slowly doing the 100% on the castle. Reached the infamous lvl80 easily but I have much more trouble for lvl 100. Any advices to beat this thing with 10k points? Even with -70% ATK it still hit very hard and coupled with high HP, high regen and wall of guts/negate damages, it's hard to speed kill it before losing all the HP protection.
I guess Vervain+Cattleya with a bit of defensive support may do it but I'm still on building Cattleya for lvl 86-90.