Custom Mob Boss

First Post... DENBCRBCHRRBR spam.

This is my custom mob boss Drasak using command blocks, I used some commands i found on PMC and youtube and tweaked them to make him.

Health:120
Attack: 20 hearts
Defense: eh... Diamond Armor Prot 25 and Thorns 25
Specials: Speed 4, Flash attack,

Flash attack: He runs around you at high speeds and attacks you, there is an easy way to give him damage while he does this attack hust hit directly in front of you and he will eventually take damage.