This was just a thought I had when farming Triple Triad Cards the other-day. But personally, I'm more inclined to attempt and obtain all the TTC because they are not tied to any purchases that limit me from being able to get them all.

With that said, when it comes to minions, because they are all on the same category, it's hard to keep tabs of all the minions you have that you can obtain in game.

I think it would be a nice QoL change if you were to split the Minions within the Guide into three categories, "In-game" "Event" and "Purchased" this way people wouldn't feel as discouraged in their attempts to obtain all the minions knowing that they never can because the mix of minions you get from Events and purchased are put in together with minions you can get in the game.

With that said, the same could be done with Mounts as well.