i'm at 110k power and still i don't see a reason to furthermore level it up from level 6. There are still for me better ways to increase power than spending 7000+ coupons there, but is up on what's your power and your relative levels.

https://forum-narutoen.oasgames.com/page/show-post-29114-1.html

thanks guys :)

Beware that ICEx there would suggest to me to go level 7, for example, but with the same 7000-7500 coupons that would cost me doing so i can get Exquisite Silk Cloth or an eventual new cloth that will appear, or to buy 72 ability scrolls and so to claim 9 purple treasure essences too as collateral effect, or even to buy 12 steps on page 10 for myoboku trial, all steps that grant me way more power with the same coupons spent than level 7 tactics.

You should always take a look at the coupon/power ratio of what you are going to buy.

Wait for Myobo event for tactic pack on wheel , I got tactic 4-5 time on last events

or you can invest on Tailed Beast Event you can get tactic and also alot of thing that can increase power

or claim on Space time shop .

i already got 70/300 on upgrading to level 7 ( carry out from my last upgrade) i used to buy page tactics when its Fukumaru Event...upgrading cave runes is so expensive...already at level 6 all runes...im also at level 8 on mt myubuko page...cloths that i dont have is kimono,summer break and the last cloth added that silk i think?...and my first player action already have the 2 charms runes head to neclace level 5 magtamas....and btw i also wondering if i should forge all my tools (all red new tools already have 6 gold attributes) i mean the other tools before the red new tool came out...thanks a lot :)

Depends on your level, main and team . A cloth cost about 5000 coupons and lvl 7 tactic costs about 6000-7500, so I think it is worth it. Anything after 8 is for a heavy spender.