As Broly sees the large water snake get created in front of him he quickly inserts his chakra into the large water dragon and causes it to breakdown and come back towards you as a wave of water as you release the lightning. Of course this will only be as large as the amount of water within your water dragon which is enough to make it fairly large (3-4 meters high). The wave comes towards you with great force and conducts the electricity that you send, leaving you to deal with the electrified water wave. Of course continuing the earth technique would leave you dead from electrocution.
(Suiton: Kyojin Nami Shougeki) – Water Release: Giant Wave Crash
Rank: A
Type: Offensive , Deffence
Range: Long
Chakra cost: 30
Damage points: 60
Description: The user gathers a large amount of water that can then be used to crash into the opponent. It is strong enough to push back Killer bee in Eight tales form.
Note: Requires a water source
Regardless of whether you jump back or not (which I dont think you can do at this point or else you'd be avoiding a jutsu by jumping) Broly is able to see you through the water and lightning a bit (albeit his vision is a bit distorted, however your attire would leave you to be an easy thing to see through the clear water) thus he stomps on the ground and causes one flame pillar to rise directly under you, incinerating you, and another two to rise directly behind you in very close proximity which will prevent you from moving backwards.
( Katon: Gōka Honoo no Hashira Jutsu ) - Fire Release: Great Fire Flame Pillars Technique
Rank: A
Type: Offensive
Range: Short – Mid
Chakra cost: 30
Damage points: 60
Description: The user will knead their fire chakra and release it into the ground by stomping down their leg and then causing three pillars of fire several meters tall spaced out evenly. The Pillars of fire can act as a defensive wall against incoming techniques or targets or used to attack low aerial targets.
Broly then finishes by quickly making 2 handseals and causing the ground under you in a mid range radius (yet stopping short of Broly's feet) to turn into a swamp deep enough to sink a summon)
(Doton: Yomi Numa) - Earth Style: Swamp of the Underworld
Rank: A
Type: Supplementary
Range: Short/Long
Chakra Cost: 30
Damage Points: N/A
Description: The user will first perform Boar → Tiger and then by changing the surface of an object beneath an enemy into mud and creating a non flammable swamp, the user can sink his enemy into the mud. The adhesive, chakra-infused mud ensnares the enemy's body, making it almost impossible to recover one's strength and escape from the swamp. The size and depth of the created swamp depends on the user's skill and the amount of chakra used, but if the user is an expert in this technique, it will always be possible to make a fair-sized swamp which is extremely effective against a great number of enemies or when having to face gigantic creatures.
If your not as strong as me, you only deserve death and never my words