when i’m grinding mobs every now and then a normal mob will explode like a boss and drop a ton of loot and silver 
how does this happen? does anyone know? it would be good to know how this happens so it can be used for farming something specific, like if its every 1000 mob or something that it happens to xD if anyone knows pls comment :
probably a shiny or golden mob.
There 3 type of shiny mob
Each of them appear pretty much at random but it also rare.
-Silver (Mob flashing in white) Is the easiest to find. It drop a good amount of silver and some loot of the mob table (Loot is fix)
-Gold (Mob flashing in yellow) Way more rare than the Silver one, it basicly finding a silver mob in a silver mob in term of loot. If a silver give you 15k he whill give you 150k silver + tons of loot (Loot is also fixed from is table)
Both Golden and Silver mob will not drop thing that have a REALLY low chance of drop (Like monster gem and really rare drop).
-Blue (Mob Flashing Blue) Probably as the same rarity of Gold , He give tons of xp.
The xp from blue mob seem to be affected by what monster is affected (Like a blue bee in DinaBee give around 330k xp but a monster of the same lv with 20k hp but also way lower in number give me 7,5 million xp. (A bit more than 1 lv at this moment)
thanks for the info 
good to know