I can copy infinitely in the sky island of all people

Billions of people around the world collectively cross!
Each person has an empty floating island and a fishing rod.
The only way to obtain supplies on the floating island is to use a fishing rod to catch clouds and obtain survival supplies.
But Jiang Tian got the [Replication System] by accident!
"Copy fishing rod!"
"Copy supplies!"
"copy……"
"..."
Just when everyone was still working hard to survive, Jiang Tian had already started a new way to play Sky Island! ..