Galek is a Magic affinity champion from the Orc Faction. Galek forms part of one of the first decisions you will make in Raid Shadow Legends, who should your starter champion be? Galek unfortunately is not top of that list as Kael and Athel offer more but he is still one of the stronger rares in the early game capable of being your campaign farmer, an arena nuker or a strong dungeon wave clearer. Galek also brings a solid debuff on his A3 with a multi hit decrease defence.
If you are looking for the decrease defence to land make sure you build accuracy. If this is not interesting then build full nuke for Arena.