Hey, im korean
Excuse my poor english.
I wrote this same thing in kroean facebook page(with korean).you can easily understand if you ask to korean coc facebook adivsor.

I will mark imporant sentence like this.




I always think that reward of defend is poor. farming base has no penalty. Defend successfully is only good for champion league.



Tomb
-Make big tomb
ex)lv 4/5/6 troops = 50/100/200 elixir
or barb/giant/pekka = 10/100/1000 elixir

-Increase max amount of tomb




Townhall/star

-Increase max amount of gold/elix/de in town hall (depend on TH lv)
like boomb beach HQ

-Increase league reward but it will be divided by stars you earned.(stars/3)x league reward.

this willbe penalty of high farming users in low league.by forcing them to put Townhall inside and make them stay in high league with good reward.




Inferno/x-bow

-show their remaining ammo .like inferno fires looks dying when it runs out.
your stragety can be more structive if you can see enemies ammo remained.




Airmine
-reduce damage and set favorite target to dragon or lava
recent patch of healer is really bad. the problem of healer is they are easily die against Air defence and airmine.
this change will make healer more safe.(not to be dead by a single air mine). also more cirtical to dragon(All i see in clan war is dragon stragety)

Thnx for reading. I want write more details.if you ask i will explain it in my best.