Juggernaut Drive doesn't qualify as something crazy awesome?! He tore his opponent to shreds (literally), I think the spine-chilling
"You... made the wrong choice." would be a perfect end to season 3.
Besides... if that's the case, we can have 7-9 as season 4, and end season 5 on volume 11
Although we can't discount the idea of a 2-cour including volume 7...