Every Idea is mentioned here! 
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- Friends should be able to help others
Someone suggested that ingame-friends should help you in Training when you need it.
5 times per day, you can ask for 10-20 % ATK or DEF in Training (for a few minutes). 10% ATK won't be just added to your ATK, the ATK is just borrowed - your friend will lose them for the 5 minutes of course!
IDEA:
Adding a friend is an useless option at the moment. With a helping system it gets useful!
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- Someone mentioned the laggs
Yeah during Boss Battles, the game is getting a bit laggy. If it can be fixed, it has to be done as fast as possible 
One of the funniest events there.
IDEA: The fun does not get lost
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- Switching the placements in your team
When you want to switch your 6th Shinobi with your 1st one you have to move every card (Trinket, Jutsu, Weapon) particular. It is really annoying. It would be better if you are able to switch Shinobis with every equipped item.
IDEA: Getting advantages when you lose a close battle because of disadvantages while fighting (Elements)
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- Bigger Ramen / Bigger Sage Stones
Yeah Ramen is gone really fast. Maybe a 500 Ramen Bowl would help?
Also the Sage Stones. You don't need the green Sage Stones at Level 9 Growth. Maybe add something like a red Stone which can be used at Level 9? And Making 100 Green Stones to 10 Red Stones or something?
IDEA: You won't waste Silver when you only spend green stones.
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- Improve Clan System
Maybe a Better Clan System or Village System where people can donate Ramen, Stones, Fragments
or anything else. Maybe 5 donations per day when you are Level 150-200 and 10 donations from Level 200-250 and so on?
IDEA: People can donate things they don't need (5 Star Fragments when you don't need the ninja)
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- Make wars more attractive and fair
Attack! Waiting 10 seconds. Attack! Waiting.. Sounds a bit lame.
Maybe you can add more awards after a single war. 100 random fragments to every participant or more Silver? And please...Make it fair. 3vs2? Add Otogakure!!!
IDEA: Fairness and more people playing Wars
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