To be honest, the only match up I'm slightly worried about more is Cyborg... due to his trait buff on paper anyway, but it's only a marginal concern.
I agree with Blaze reward is not worth challenging MB venom and isn't actually a big deal...that's meant to help Doomsday against Batman and friends.
Superman's super nerf is a big deal for us...we have full access to mace charge and can use her minus three strings safely versus him with full bars now. Not sure if this also means we can fly full screen away or not though when he has super.
Lex's buffs don't change how we fight him, they appear to be a lot of fixes mostly.
Martian Manhunter discourages jumping around for the entire cast as is, that teleport buff just reinforces that. She still can give him problems when she does get in and can punish all of his frame gaps easily with down 1, forward 1 or wing evade 2 and martian grab on block for solid damage. She has the ability to disrupt a lot of his tools. He also lacks a traditional horizontal projectile so unless he puts meter on orbs or pillars advancing isn't a real problem like it is versus some zoners.
