Nomad Rath
When you're against a group of enemies that all have that ******** lunge skill, it can get pretty annoying when there's nothing you can do from your unit getting chain leapfrogged across the entire ******** map.
One thing that ******** me once, if I'm remembering correctly, is that counter now activates even when the unit you attack is defeated, which caused my attacking unit to die and made me restart. Bullshit.
I'm not sure if that's a one time thing but I've been surprised by enemies with counter that I had to spend another turn dealing with that didn't pop counter on the deathblow. It might be only if you take two attacks of the same battle to beat it, or something went horribly wrong. Wiki itself and looking around doesn't mention any changes to counter, but I'll be keeping a eye out.
But shout out to my new favorite skill Duplicate. It needs a self-sustaining build to be viable, but it's incredibly cool with a 101 uses for making support grinding easier, being a godsend on maps with an odd number of units, having that extra healing/damage where you need it, the only downside is having to worry about damage in two different places but Sol/Renewal/Lifesteal (Especially Lifesteal since it can proc twice a turn)/Even Nap or anything else completely soothes that over.