Any tips for when to use what card for each moment?

[quikSylvir]

For Spear, while it is good for everyone's big cooldown reductions, I like to save it for myself and use it before I pop Luminiferous Aether. It brings the CD down to around 84 seconds iirc, nothing super game changing but it's a little bit of stress off the MP regen, for me at least.

What I do with Spire is most of the time Royal Road it, but if I know the TP using dps has trouble with TP management or it would benefit them to not have to do something that sacrifices their dps to regen TP, I will use it on them. (Warriors would probably also love it, I know my warrior friend used to burn through TP in FCoB, not sure how their sustain is now-a-days though).

As for Arrow, you can generally throw it on dps to boost their attack speed, or again if healing is tight, throw it on yourself for slightly quicker heals.