Great Ball
From Pixelmon Wiki
A Great Ball is a type of Poké Ball categorized by the red and blue coloring on its upper lid. It has 1.5x the catch rate of a normal Poké Ball.
Crafting
A Great Ball disc is crafted by combining a cooked Blue Apricorn, a cooked Red Apricorn, and another cooked Blue Apricorn.
After using the disc with a hammer and an anvil, the resulting Great Ball lid can be used to make the Great Ball.
Trivia
Great Balls used to be crafted differently. This recipe no longer works.