2. Cards just entering the picture being able to trigger their abilities. Arguably, this is working as intended, but is the focal point of what some think need to be changed.
Not to mention other cards/effects that could alter, re-alter, or affect game/card states.
Right now we have, plain and simple. Something happens. Responses to said thing resolve. Doesn't matter when or how they got to be useable, just that it can. To limit that would do more damage than good.
If I got my hints correctly, Brad and Damon paid a lot of attention to my deck at gencon (especially after I warned them about it in advance), and seems like they already have a plan. I just hope it works.
If they already have a solution in mind then yeah, go with that of course. I still don't see how adding a requirement that the card has to be eligible to respond at the time the trigger happened would cause problems. Do you have an example? That would probably go a long way towards explaining why this approach won't work (even if restricted to the discard).
Adding "Pay 1" to anything pretty much shuts down any possibility of using it in a loop, the problem is that it makes even the first execution expensive so it may just kill the whole card. Exhausting is usually softer, but cards in the discard pile can't exhaust of course. Ideally, we'd like to come out of this with the cards still being useful - one of the main purposes of these faction is for people to buy a Core + Box and have a solid deck to start with so we don't want to do anything that impacts this too much.