I think writing a bit of text to make compliceted cards clear is the way to go. I don't think it makes much sense to write it all on cards, as its both unreadable and might confuse more then it clears, but additional document, like online page. Why not?
Lets try this idea on some actual AP.
Issue I : The unspeakable pages (newest pack)
Dr. Cornelius Rose
Forced Response: After a story resolves to which both Dr. Cornelius Rose and at least 1 Villainous character are committed, ready Dr. Cornelius Rose
This is a forced response so its mandatory and it will trigger just after a story resolved, before next story resolves and before any responses can be played. The vilanous character can be commited to any side, but remember you cant control both Vilainous and Heroic character unless you have cards like Tyler Scindere. The condition of vilainous character commited is tested when the ability is to be triggered (after story resloves) so if he uncommits from this story (or dies) it will not work.
Action: Drive Eryn Cochwyn insane to choose a Tome card and trigger its effect without paying any costs. Then, the controller of that Tome card must sacrifice it.
Drive insane is a cost. If any effect cancels or prevents it the cost has not been payed so nothing happens. You do not pay cost of triggering tome, meaning you do not do anything before "to" part of the cards cost. For example with Forbidden knowledge you take 4 cards and the character is not sacrificed. Becouse of "then" the controller of the tome must sacrifice it only if tomes effect successfully resolved, for example you cannot get rid of Book of eibon that way as it cant be triggered. Sacrifice is not destroy for response purposes, but card does leave play.
[edit: who gets those 4 cards when you trigger opponents Forbidden knowledge? you or the controller?]
Response means it can be triggered after any "thing" (Action or game effect, i don't know the common name), for example you can trigger it after committing him. Reveal means all players get to see the cards. When you place them on deck you do it one by one and only you know the order (or not? idk; thought this card was simple, guess its not that simple)
Kaleidoscope of Calyptra
Characters committed to the same story as Kaleidoscope of Calyptra that would go insane are instead wounded.
This changes the effect of going insane. It affects both sides of the story and both results of losing T struggle and any effect that would make those characters go insane while they're committed like Horrifying Daydreams card. Insted is a replacement, so the character is not considered to be going insane, but he is considered wounded. T icon or willpower will not protect him (or will it?), but invulnerability will. And responses and disrupts for taking a wound can be triggered, but effects that refer to going insane cannot. Charles Dexter Ward will not be able to protect himself from this effect (or will he, here i really dont know. thats one of the reasons of making this - you have to think how card will interact and explain it)
Lower the cost to play Ritual and Spell cards by 1 (to a minimum of 1).
Action: Exhaust Magical Theorist to add X success tokens to a Ritual support card. X is equal to the number of Tome support cards in play.
If hes exhausted you cant trigger the action as you cannot pay the cost.
Named by the Unnameable
Action: Choose a Lunatic character you control committed to a story. That character gains TTCA and +3 skill while it is committed to that story. At the end of the phase, if that character is still in play it goes insane.
If some effect like The Cavern of Flame removes him from the story he immediately loses additional skill and icons. Even then he still goes insane at the end of phase. If you manage to keep you lunatic at the story with cards like Voice of the Jungle and protect him from going insane with Cho-cho mask the effect will still last only one phase as there is nothing on the card that says otherwise (or is this "while commited" description of cards duration?)
On the Run
Action: Choose a story. Characters cannot commit to that story this phase. Any characters committed to that story are uncommitted.
Uncommitted characters remain exhausted if they ware exhausted. There was no A struggle so A icons don't help them. If character cannot uncommitlike Obsessive Detective he will satay (or will he? idk, another FAQ entry… )
Forced Response: After Padma Amrita is destroyed, put a [Cthulhu] character into play from your hand.
Sacrificed is not destroyed. Yes, also your cthulhu or other great character. Its forced response so you have to do it (idk what happens when you don't have green character in your hand? you have to show it? idk)
Some non obvious interactions appeared. Some FAQ candidates appeared.