Here is the full list of all 16 Clash achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
You have ascended to almost godlike powers
You've won 50 matches!
You're a really good jumper!
You've won 10 matches!
You've won 3 matches!
Golden fish' can bounce
Party like it's the 2000's!
You've proven your worth. You are a true hero
You are swimming in crystals
There just can't be enough crystals.
You're getting better
The hunger is setting in...
You have good friends
You are a true crystal hunter
Welcome to the jungle
Let it rain!