There was no water in the barrier. Once the chain touched air, the yellow light on it immediately disappeared.
Di Lingtian reached his fingertips out of the barrier and touched a drop of water.
As soon as the droplet landed on the metal chain, specks of earth element light immediately lit up. After absorbing the droplet completely, the specks of earth element disappeared again.
Curious, Jun Mohuang reached out and poured some water on the chains. It was also absorbed by the earth element light spots.
At a given amount, earth elements could suppress water elements.
It seemed that the octopus was of water type and was restrained by the earth element dark iron. It could not escape nor use water-type attacks.
From this, it could be deduced that weapons made of earth element dark iron could counter water-type attacks.