One of the most important ways to progress further in Fishing Clash is by upgrading lures. Doing so will not only get you the experience necessary to visit new fisheries, but also help develop your fishing skills and allow you to catch bigger fish!
You can upgrade each lure after gaining enough lure cards. You can get new lure cards from packs and in the shop – but only for lures picked randomly.
Each lure can be upgraded to a certain level depending on the fish rarity.