I needed some goods to get a coalition. I did only 5* attacks, and only 30% chance to get 1,2,3 trade goods! C'mon. why not give a trade good for every 5* attack, so 100% chance.
To be honest national goods are easy to get, and no one nation is more difficult to obtain than any one other. I Locked in coals tonight and fully stocked back up in under 2 hours. If you farm the 400-2000 range, you will find good portions of each nation.
I'm so honored to finally meet someone who's still able of 5-star victories after all this defensive over-boosting. Unfortunately it appears that you didn't get what you deserved. I hope they fix this someday awarding 100% the NTGs
If I had to guess I'd say my chance of getting 3 NTGs from a 5 star is closer to 80%. I've actually only noticed one 5star that yielded me no NTG. I'm sure there have been others but I wasnt paying attention.
we play WW almost back to back and I always use 3 coalitions level 6+.
The trick is to farm at 1400-1800 medal range till you have the required NTGs. Then do more battles and reach the 2000-2200 medal range. Get the nice victory chests and before the next war starts, drop to 1400 again. Repeat!
I would also put my guess for the default value to be around 80%. Without Museum, I was getting them most of games but several times not. Now with +8% NTG chance in Museum, I seem to be getting them after almost every 5* win.
This is the most frustrating thing with the game and likely why I will eventually rage quit world wars. It would be hard work enough to grind for NTG's if they were guaranteed but to have multiple 5* wins and get no NTG's makes me want to smash my phone into a billion pieces and then burn the remnants in a ceremonial shrine to how much I hate Nexon.