The Flash Season 6 Review: 6 Ups & 2 Downs From 'Marathon'

3. An Ode To Oliver

Barry's assumption that Oliver was trying to tell him something with the mask might have seemed a little odd, but that's only because it was designed that way. A mechanism to help him cope with the reality that his first super-friend had gone, he wasn't even aware of the fact that he had fabricated potential danger in his head.

This allowed for a touching moment between him and Diggle as the pair shared their views on Oliver's death - and it all made for one final heartfelt tribute to the Emerald Archer from The Flash.