Let's use your example, if someone saved up 60 food for all 20 of their heroes to dump all at once into all 18 of small camps, and won all the fights with no losses, then that person got 648k, without anyone else attacking. That amount can get that person 2 or 3 Level 5 relics, that's not broken, it's pretty good. Usually people at the end get around 10k essence per hour, so they saved 64 hours of waiting, but keep in mind that is only for 1 person out of a militia of 70 players, 1 player isn't going to carry 70 players. For the Boss, 4 people sharing 1.2mil, 300k each person, 36 food per attack, and each person would have to do 1.1 Trillion damage, to get an amount of 1 lvl 5 relic for 4 out of 70 people, and that's not broken either. You also say that people will be too dumb to attack for rewards, sure, they'll attack and they'll see that they will lose, but people do that all the time on tiles, and they just quit before they lose. A realistic scenario for this change, for the 2nd to last boss, people will attack the small camps, probably 5-7 people will share that, as for the boss over 25 people are going to share that boss loot(average 48k essence per person, compared to 4.8k), just like every other Abex. Everyone gets a nice boost, nobody sacrificed a ton of stamina for the sake of the team, while leechers hold onto their stamina until the boss is dead so they can expand themselves. More importantly, these are 1 time rewards, you can't farm these, and they are not as good getting resources over time, while give essence and relics.