While Kuldotha Rebirth isnt currently a staple in Modern, it has seen some play in the past, mostly in very aggressive 8 Whack style decks where adding three Goblin bodies to the battlefield for one mana is super valuable, but this might change now that we can play eight Kuldotha Rebirths in our decks
Your opponents will lose most, if not all of their creatures while you get to keep all of your tokens
I can't see what benefits you're getting from Solemnity (its application is very narrow and there will be lots of games its doing nothing) , Wedding Announcement Flip (its a bad card, and you have too few creatures to make any use of it) , Urza's Sylex (games seldom go long enough for this to ever be able to do anything
But this is still true with some newer cards that were never printed in the old frame as well
These are vital in keeping Phenax around and allow you to build around it much easier without having to worry about it dying as much as other "build-around" commanders might need you to
As with much of Fergusons art, theres a lot going on here
