These are going to be kind of all over the place, apologies.
1 - How does Morde ult work? The video at his release talked about "different interaction layers", but what went into building that separation? Is "realm" now included in all position values? Does every ForEachUnitInXXX now have flags for which realm(s) to look in? Did you have to make a lot of changes to spell scripts to handle units being in different realms?
2 - How does Yuumi Q work with the cursor following?
3 - How did you get extra spell slots to work with Sylas ult? Just assigning each one before casting it?
4 - What was the removed "Baubles" spell slot supposed to be used for?
5 - What was the removed "Scriptable" missile type for?
6 - Why does Aurelion Sol passive have a different missile type than the other circle missiles?
7 - Why does Xayah passive have a unique missile type not found on anyone else?
8 - What are NextSpellVars for? Next cas...