Instantly you can see the battle between two elements. The thunder element and the poison element clashing with each other. Naturally compared to the poison element it was more powerful and because of these The Tiger that got created by the poisonous liquid getting destroyed by the thunderbolt that kept advancing even though that poisonous Tiger was trying to destroy it.
But you can see that while that poisonous Tiger gets destroyed the poisonous liquid also begins to spread around that area and everything that got covered by the poisonous liquid also gets affected by that.
Naturally that is the plan of that poison user. From the first he knew that he wouldn't be able to win like this so he needed to use his plan to win this fight against the thunder element. Also he already created a thick layer of poisonous fog that would prevent thunder limit users from attracting him directly.
