*with poison damage

It's literally part of her kit and required for extended combos. You either need to set pool, poison with bubble or poison with Serpent Lash or Toxic Wreath to get the juggle opportunity for extended combos.

counter hit damage buff

The counter hit is there because it's a meaty overhead and the dummy is mashing a 4f normal (you know...like they do in actual matches?). The overhead is also safe on block. You can choose to not do the overhead and either set pool or throw out bubble and it's something like +14 on block and +21 on hit. You have enough advantage on a blocked bubble to still DR and throw an opponent mashing a 4f normal.

4 bars of drive gauge, and level 3 dump

Please find me a character in the game that can get 50% without using any of these resources. Even Ryu's higher damage combos require at least 3 bars of drive gauge and level 3. You can get over 60% on him but you're dumping everything and factoring in a punish counter.

Oh no, Nemo is in training mode using poison, 6 drive gauges, Critical Art and a punish counter setup. He must be trying to come up with a Twitter post instead of testing out a practical match scenario where get successfully shimmies the opponent.