The Rising Phoenix Trophy in Trials Fusion
The Rising Phoenix
The Rising Phoenix Pass all tracks on Fire in the Deep
How to unlock The Rising Phoenix
You'll find all the tracks quite easy in this DLC. Even the Expert track is on the easier side (possibly the easiest Expert track in any DLC so far), and doesn't require any advanced techniques to get through.
There aren't any detailed walkthrough's for the Expert track yet, but here's a youtube user Shawn Paterson doing a decent job completing it: