Thunder Bolt
Silly old bat
Travel Cards will fall under the remit of central Government due to the involvement of the rail operators. I'd imagine the Oyster card situation is fairly similar, though, it's pretty much impossible to justify if fares on Oyster Cards are going up for TFL services (as the Oyster card extends to rail services as far out as mid-Surrey I believe) . Khan's remit on transport is ultimately limited to TFL, so I think it'd be a little unfair to berate him over rises outside of his remit- the Oyster part is where I'd potentially slate him because parts of that would fall directly under his control.
Don't let the truth get in the way of an Nsc, finger pointing political accusation.