Board Thread:Episode Discussion/@comment-4141313-20181229081856/@comment-4136655-20190104191951

SomeoneYouUsedToKnow wrote: Like I told you, that's the thing. If he's able to use the Semblances he takes, which he should, then considering he got killed by his own son off-screen in spite of his experience makes him absolutely pathetic.

Of course, Marcus being All For One doesn't make the idea of Merc beating him impossible like you think, just less believable, but at the same time it would reinforce his words to Emerald, since in-spite of the power gap he still managed to kill his dad.

As for how: Using Semblances too much would run him dry eventually on Aura, and IIRC he was often drunk which would/should hurt his dexterity somewhat, and in any case it was nowhere close to a smooth victory for Merc considering the whole barn was in flames, he was exhausted and his knees were injured to the point he had to switch to metal ones. Okay, I see your point on that. However, I definitely would like to learn more about how Marcus's Semblance works.

Though, as for that last part, that is assuming that its Merc's blood on those bandages, not Marcus's. If his knees/legs were injured to the point he needed prosthetics, after that fight (certainly not saying that the fight was a cake walk for him) Merc would very likely not have been standing while conversing with Cinder and Emerald.