Well, to be fair, I don't belittle a hattrick in CL by anyone. And true again, he scored a goal in the first match too.
But I belong to the minority to those who are not obsessed by only the mere quantity of goals, and in my eyes Arda's assist for Messi's first goal is at least as valuable as his goals yesterday.
Last season, when Suarez was in form and scored 40 goals, the most admirable quality of his was to be able to also assist a lot of them, mainly to Neymar.
Arda indeed played a good game against an unmotivated and weak opponent but he still remains way too slow and all that. His presence was a major factor for this very game but there will be a lot of games in the season, when you will curse him once again (if he plays) because unfortunately he is definitely not the player I'd be a Barca fan from 1600 kms away...