General

what should i spend my tempest coins on

So i have tempest coins on different accounts, and I was wondering if I should buy a tempest dagger and scroll it for my dual blade with the scrolls from the tempest shop. I can't buy the nova equips or whatever because my tempest coins are on different accounts, and I don't have 200 coins on a single account. My dual blade has a 115 atk 6% luk 3% atk dagger, how good are the odds of me making a better tempest dagger? Or what else should i spend the coins on? I have around 40-70 coins on each account for about 6 accounts.