Is there any generous owner of cubimal collection who would be able to lend me his/her collection for a couple of minutes. Promise to return it back and give in addition one of my Icons as a reward for generosity.
i got the trophy without having to hold all at the same time, i've raced some of the special ones while on loan to me. as i started my own collection and purchased a batterfly, the trophy triggered. at that time i only had the batterfly in my inventory, and a few other commons in my house. i've heard this particular trophy is finicky...
Rikki-Tikki, I have them all. Please IM me sometime when we are both in-game and I will let you borrow them to hold. Nothing required in return. I know and trust you already.