I mean it's true, specially kushi and gaara, cause idk how many times in sage i wiped the enemy's team in first round but oh boy the resistance kushi survived and from there scaled and bring me to round 10 from a fight i had easily won, making me loose so much time. And indeed gaara healing more than hashi is so *.

Still i tell ya, put a control ninja in your life. Kurenai Summer or Ibiki can put out of the board any ninja for two rounds if you use them correctly, that's more than enough to kill any of the above mentioned demons trust me.