This build order is a modified version of the last build order Avilo Late Air Army, with CC first, going to early Liberator against mutas.
If you see your opponent going early roach ravagers, you can switch your Starport to a tech lab and start banshees. Otherwise, go double Liberators. The late game is quite similar with, liberators, speed banshees, blue flame hellbats and a few tanks to defend 3rd and 4th bases. Don't forget to upgrade your liberators with range fire right after fusion core. If you see too many corruptor in his army, build vikings to support your liberators. Ghosts appear in the end to counter Vipers parasitic bomb, sniping them or EMPing them. Dont forget to snipe Overseer to be able to use cloak Banshees and your cloak ghosts don't die with attacks. Ghosts are good against brood lords, snipe them cloaked. Any doubts, please see Avilo's Twitch channel
_Important: due to SALT bugs, scvs in the list are actually reactors._