I watched the one piece upto date.But not in a single episode they didn't show what roger power was,is he devil fruit user or not.What you think
I doubt that even though he can use haki how can he withstood whitebeard.he made a tied and wound on himNo he wasn't. And I've watched all 534 episodes two times over.
I wouldn't say Shanks is as strong as Whitebeard.I feel like if he had a DF it would have been revealed by now. There's really no reason to assume he had a DF either. A lot of the top tier characters lack a devil fruit.
You asked how he could beat Whitebeard without a devil fruit, but Shanks is just as strong as Whitebeard and he lacks a devil fruit as well. For all we know neither of the other two Yonko have a DF either.
he didnt have the power to commuicate just hear them..U_U.I think that Roger's haki was just on a monster's level, like he had premonition haki as powerful as Enel's, Armament haki as beast as Whitebeard and Conqueror's haki as powerful as Shanks or Rayleigh! This could surely make him very overpowered!!, OF course he had the power to communicate with Sea Kings too