Their weapons met with huge explosion indeed!
As Estas' lightning allows them to use a lot of lightnings in form of one, wouldn't it be awesome and strong to summon more of these lightning at the same time?
Xue Ren was aiming for this with his technique from third reincarnation.
Uris' spearmanship was coming from divine world that was solely of divine qi and spear qi. So how could it be weak? And how couldn't he not do it if he has power to break the universe?
Shu! Shu! Shu! Shu! Shu!
Holding his lightning spear at its end, Xue Ren thrusted forward rapidly. The imitations of his lightning were so alive and strong that Kuye got slightly surprised! Nevertheless, he swung his sword and the lightning took form similar to that of 'slow lightning'.