Illustration Rare will be used for any regular Pokmon, while Special Illustration Rare will be specifically for those in this Unova set that appear as an ex card, which, unfortunately, has already been confirmed to include Serperior ex and not the other two starters' final evolutions
I dont know if those two uses make them worth an include anywhere, but I played Apex Altisaur in Legacy recently, so its entirely possible
This is in stark contrast to other popular sets from this year that while also having one or two top chases still boasted a wide range of secondary chase cards that were still valuable.
3 deck boxes
Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.) Illustrated by Vincent Proce Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Why do some proxy cards come close, but still feel a bit off on the table