[Primer] Six Shades of Dressnought aka Vaka-Nought

[FTW]

The point would be turn turn faceup either a utility creature with an ETB you cared about, or Emrakul

Flickering a facedown Dreadnought, Uro or Eater is bad news. Dreadnought can already go faceup for 1 colorless uncounterably without using the stack or needing a spell to turn it up.

So what does it help with? It would trigger Endurance/Subtlety ETB (but why cloak those in the first place?). Emrakul is already better with Drifter or SnT than with Cloak + Flicker, and that's a different deck anyway.