If Spirits are needed for your party/squad, swap for [Additional Power Damage] or [Additional Condition Damage].
If playing in Open World content, you can unmerge with your pet to have them tank for you, and if it dies, simply merge and unmerge again to revive your pet instantly.
If playing in Open World content, you can swap for for additional Boons.
If playing Open World content, you can swap the for the as seen below. This provides more damage when playing solo, but does less when playing with a group.