In addition to the above, a “good” mod is typically defined as one with a speed increase on it. While the general mod types (the picture on the mod and where you get it, like “health” or “potency”) can matter somewhat, the primary and secondary specs are much more important. Arrow-shaped mods are the only ones that can have speed primaries. A 5 star arrow mod with a speed primary will give 30 speed when it’s leveled up all the way. You should have these “speed arrows” on every single character you regularly use.
For all the other mod shapes, speed is going to only show up as a secondary characteristic. A good rule to follow is: when you first get a mod, it’s only worth keeping and upgrading if it has 5 stars and it has speed somewhere on it. Sell everything else or put them on your weaker unused characters for a higher power rating.
For ones with speed secondaries, you can level them up gradually to see how good they’ll get. Every 3 levels (level 3, 6, 9, and 12), a mod will either upgrade an existing secondary or add a new one. Here’s where the colors come in. A grey mod starts with no secondaries and will add a new one when it gets to each of the levels I said. Unless it’s a speed arrow, sell or offload all your grey mods because they’re not worth upgrading. A green mod has 1 secondary skill showing, a blue mod has 2 showing, a purple has 3 showing, and a gold has all 4 showing. The number of skills showing when the mod is level 1 is also the number of chances to upgrade one of those skills. The upgrade process is random, so you won’t know which skill will be upgraded until you upgrade the mod. Upgrading mods all the way to max is expensive (half a million credits per mod), so don’t do it unless you have a keeper.
Speed is king. Mods with 1-5 speed are low level and you could put them on your second- or third-string characters. 6-10 speed is ok for some of your first string characters if you don’t have anything better. 11-15 speed is good and mods with that amount should go on your first string characters. And mods with 16-20 speed are amazing and should go on your top characters only.
In addition to speed, look at the primary characteristic for each mod to figure out which character might benefit most from that mod. Got a character that dies fast? Give them health and protection primaries. Not doing enough damage? Offense, critical damage, and critical chance primaries can fix that. Need to land more debuffs? Potency is where it’s at. When you mod your characters, you can see the effects of the mods you have on them. Mix and match to find the best fit. And this is where the mod types come in. If you have a certain number of mods equipped on a character that are the same type, the character gets a bonus. If those mods are all max level, the bonus is increased. Again, play around with these to see what works best.
Lastly, let’s talk about farming mods. You unlock mods by completing mod battles, but you just need to get through all of them once. After you finish the last tier of mod battles, never go in there again. You farm mods from mod challenges. Each type, except health, requires five 5 star characters of a certain faction to finish the third tier of the challenge. You need to 3 star those third tier challenges to farm mods. Once you have done that, you can use sim tickets to farm mods. We’ve already talked about the mods you want and the ones you don’t, so you know what to look for. Now let’s talk about time and energy. Based on my experience, it will take an average of roughly 800 cantina energy spent in order to get one good mod. In order to get a full complement of 30 good mods for your arena team, that’s 24,000 cantina energy spent. And that’s going to take weeks to get. But by going through the process, you will make your arena team much better, and you will climb higher in ranks than you have ever been before. The characters with good and even fair or low level mods will be better in all aspects of the game. So it’s worth doing. But know that it’s going to take a while to do.
Personally, I will farm a character from cantina energy and then farm mods for a week. Then another character, then more mods. That way I keep getting more good mods, and mods can be rearranged so if I change my arena team tomorrow, I can move all my existing arena mods (my best ones) from my old arena team to my new one. Mods are one of the best parts of the game because they truly allow you to customize and personalize each character as you want.
Good luck and happy mod farming!