Ancestor Skills are different abilities you can unlock during your time in Avatar: Frontiers of Pandora. These aren't unlocked with skill points as you level—instead you'll need to track down Tarsyu Flowers and interact with them to receive an Ancestor Skill as a reward. There are 12 to find in total and you'll need to explore the far reaches of Pandora if you want to collect them all.
Luckily, they are pinpointed on the map with a pink column, so you can see exactly where you need to go to pick them up—that is, assuming you're playing in Guided mode. Of course, it won't always be that simple, and you may need to defeat enemies or destroy an RDA base before you can access the flower and the skill it holds. With all that said, here's a list of the Avatar: Frontiers of Pandora Ancestor Skills I've found so far.
