Ravnica Allegiance The Haunt of Hightower, Teysa Karlov, Prime Speaker Vannifar, Rakdos, the Showstopper, Nikya of the Old Ways, Lavinia, Azorius Renegade, Judith, the Scourge Diva SCG CON Winter 2018 Yuriko, the Tigers Shadow, Grothama, All-Devouring
1 Adorned Pouncer
Sazh himself can call up a vital land or Bird card, while Bartz can make your flock gang up on a particular enemy when he enters
It swaps devastator's wings for vigilance and trample, a pretty good trade-off all things considered
Strangely enough, yes
That being said, I think this likely ends up not turning on often enough to be worth it in actual play, or in the case of Domain the extra 1 damage isn't what you need, it's to remove the Leyline of the Guildpact