As Vayne was in the process of executing his move, the man in front of him sidestepped out of the way of the technique, and furthermore before he can react the man had drastically increased his weight, this prevented Vayne from attacking, and as a result he fell to the ground causing a small creator. Whilst inside the creator Vayne smiles to himself and thinks this is going to be fun, and with that said, he counteracts the weight technique through his own weight technique, he then follows it up by 'shedding' the armor.
Vayne then leaps out of the small creator and notices a humongous summon, "
The bigger they are, the harder the fall". Vayne focuses his chakra into the ground and causes a huge volcano like structure to rise, the structure will rise from beneath Gamabunta's front legs, this will cause him to most likely tumble backwards along with Jiraiya on his back.
As the structure rises Vayne decides to get serious he sends his chakra to the air and causes it snow.