Defeating Moander or other deities
What would be plausible ways a PC could remove or defeat Moander in a given campaign setting? I'm exploring the possibility of this task in an upcoming campaign because it makes a lot of sense narratively. This is a setting with wild magic surges and other unpredictable forces. I've read that he's been defeated in the past but is this a believable storyline? The PCs are doing a lot of things to build up their strength and training to take on something this level and it's a very long term goal. I'm a newer DM and don't want to present something that just seems out of reach. I've not seen a lot out there on defeating Gods/deities etc. Thanks for any thoughts or suggestions at all!