Giving Brago double strike is so clever, and the Worldslayer -combo (and Taj-Nar Swordsmith for tutoring) is nice. +1.

Have you though of putting in more flicker-effects in case your commander is disabled/tucked? Deadeye Navigator , Mistmeadow Witch , Ghostway , Momentary Blink and Ghostly Flicker is all good.
If you're looking for more possibilities (blinking, removal, ramp, card draw, etc), check out the description on my deck, Blink blink, nudge nudge.

Thanks for the comments. Im just making some changes now.

I hate to burst your bubble but Brago, King Eternal + Worldslayer doesn't keep all your your things safe. Brago's ability exiles and then returns those permanents instantly, like Cloudshift . If you equip Brago with worldslayer, all of the things you exile with brago will return to the battlefield and then be destroyed by the worldslayer trigger.

You could re arrange them on the stack the other way around but that would destroy everything first and cause Brago's ability to fizzle.

I too am building a Brago flicker deck but its super budget.

Duly noted, deck is being tweaked.