[Baalz]

Yeah, obviously its an uncommon situation where it makes sense to deploy your pretender just to push dominion, but it's not that hard to think up a couple times that's a nice trick to have up your sleeve. Perhaps as your NAP is in the middle of expiring and you're pretty sure there's gonna be a big fight right there on the border where there is a massed enemy army and weak enemy dominion. Or where you're expecting to fight enemy immortals.

Also, another advantage to having stealth is it lets you avoid most ritual spells. Being immortal, this isn't a huge deal most of the time, but it allows you to play a little aggressively out of your dominion if the gain is big enough. Say you just really need a flying heavy hitter to jump behind this huge enemy army to cut off their retreat route but it's out of dominion. Risky move, but sometimes moves like that can win you the war/game and you don't have to worry about a dozen seeking arrows dropping on you the turn after as you sneak away.