Guys don t use kraken and after swap to star. There are 2 items which are the best for this temple event.
First is swamp ring. Whith this ring you get +2str per each wave you clear. So that means every time you clear a wave your stats increase, and you get stronger.
And if you are a mage altar amulet is the best, same as swamp ring you get +2 int per waves you clear.
So now if you wanna test it go try, and you will see if your score increase.
Also very important don t swap to other set when you use these 2 items, because you will loose the str/int you get from them.