1. no idea

2. after 300 you get 2 reanimated hashirama frags on the 500th.

3. farm gnw packs

1. Wait and save. Coupons don't lose their value over time. Ninjas will come back eventually

2. In every single case go for permament seal rebate. 66 scrolls for 300 VS 40(44?)+2hashi frags for 500. You will get those 2 frags from bonus seals you get from permement one anyway, but you also gain more seals overall, more frags and stuff.

3. If your group has both really good atmosphere and you arent super competitive, just stay as your own group. As long as previous criteria are met, you feel fine playing as it is and you actually can find teams and do all activities- merging for the sake of merging makes no sense. Ask your group for opinion first and foremost. As you said, merge also reduces seal income by a lot.

1) The only reason why this time fukurukumaru deal had no ninja is because was together with the introduction of edo hiruzen. Do not worry, next time you'll have back ninja fragments.

2) recruitment feedback was depowered a ton. Used to give 54 7days scrolls for 300 used, now grants 44 for 300 used. If you want to know if is worth to go for the 500 option that grants 2 edo hashi fragments you have to make a comparison with what the other rebate grants you with 500 seals. that one grants you 66+36=102 seals and since in average you get 1 fragment of hashi every 40 seals used you have your reply. The 500 option is worth it only if you desperately want edo hashi and you not care about anything else, but the advantage is limited to the 22 more scrolls (102 vs 124, where i consider the 2 hashi frags worth 40 scrolls each one) that need to be necessarily used within that week so you cannot use them for the eventual following rebate.

3) until you are able to keep 200 3-days activity rate stay in your current group and farm easy gnw packs. If you go in another group the packs do not multiply.

its best if you just continue to save your coupons and wait for something big to arrive, I'm currently saving up to 50k coupons, but I also recharge ingots and save those on recharge rebates

Saving more than 35k coupons make no sense, there is not and there will never be an event where would be worth to spend the coupons in excess after the 35001st.

The only way I can see why to do so is how fast they release ninjas. Since saving 20k takes time, at least a ninja you would want will be mostly be released but you don't have enough at the time after spending.

Thanks man ^^

does the cards disappear after the event?

1. Only Oasis knows when will the Ninja Fragments will come back in this event but it is also possible that what Scarlettblue said might get happen.

2. As of now, we don't have that amount of Rebate in Seal Scroll rebates. Only CN servers has that above 300 marker rebates that gives Ninja Fragments such as the Six Paths Ninjas .

3. If all you care is about the GNW packs and your little group can manage to join and register the weekly GNWs then it is good for you to stay with your group but it has some disadvantages too like not having additional percentage in Coins and Group Contributions. On the other hand, if you're the kind of person who wants to win battles and just like what Boruto said "I don't like being a loser" kinda guy, then you must consider the deals from the 2 stronger groups in your server.