(Treat it and anything attached to it as though they don't exist until your next turn.) Whenever King of the Oathbreakers or another Spirit you control phases in, create a tapped 1/1 white Spirit creature token with flying
Each upkeep, you put an age counter on your card, then pay the cumulative upkeep cost for each age counter on it
The Seraph was an expensive 4/4 flyer that would allow you to take control of anything it hit that died the turn it was damaged by Seraph
The anthropomorphic cast of characters pop up everywhere, and heres another example, with the vulpine Robin Hood making an appearance on the list of the most valuable Shimmering Skies cards
Scoured Barrens also fills the gap to get that extra one life needed to get that Angel token trigger
While the sleeves didn't hold up all that well to the rip test, they are durable for the price