rewards of pvp and boss bolt

I kindly ask that prizes can I find doing pvp ... (You can find synthesizers?) And how do you drop the dragon BOLT? I can not understand after the date nature if the dragons are still droppabili the end of their level or time only through the egg pieces

I used google translate

I hope you will be able to understand everything I am about to say

Prizes through PvP:
- All Stones lvl 1-4 (NO synths)
- Dragon XP Cards lvls 1-5
Bronze Chest
Copper Chest
Gold Chest
Crystal Chest
Gold Key
Crystal Key

Bolt Dragon (+ how to get him):
- Bolt Dragon when you get him he is lvl 1
- 50 egg fragments required to get him
- You may purchase him through shop for 3000 coins
- Fragments are found at random, most of the time from EGG SHELLS which may be obtained randomly or purchased through shop with Honor (NOT 100% sure)

Hope this explains some things,