Agree, pretty much any solid tank is better once her special kicks in.
I can see how she helps teams stay alive but having a harder time seeing how she kills. Good tile damage for when you are initiating the attack but slash damage doesn’t have the upside from cascades.
I like her special but prefer the likes of Hel/Proteus with the mana control (albeit at a slower speed) or the defense down heroes if I had to choose.
I was thinking Kunchen as tank for his defense down special making the entire enemy team more vulnerable and he innately resists defense down, something Margaret may not protect against (if Isarnia/Evelyn/Frida fire, is the damage portion of their specials the same roll as the defense down or two different rolls?)
Since Guin tends to die by tiles Margaret doesn’t help her tremendously which was probably intentional to keep game balance.
I find Margaret intriguing rather than a must have. Her role seems fairly clear, flank that improves the tank and protects the wing (so a slow, squishy, deadly wing is now viable again (Isarnia we’re looking at you).
It seems a lot of thought is going into the newer specials to keep them from unbalancing the game as well as bringing the slower heroes back to relevance.
All in all, I like it because it will help keep the game interesting into the future. That said, would I still like some of the Very Fast death dealers? Yes, of course I would.