Are the Gnome boots a random drop from the troll camp? Of course I didn’t get them on my first try.
With Xmas nearly here I not sure I can do this event... will it hurt my game not too...
No, not at all. It's an optional event, so take time off if you want to It has no impact on any main story. The items will likely end up in future sales for gems if you're really keen on anything in particular. Maybe just do the daily goals for the 3x gnomes as that will only take a few minutes each day to complete. Hope that helps!