Ravos provides another Cleric tribal commander, something to use with Silverchase Fox to ruin the Theros block Gods, a way to recur some evoke creatures, and (the best option I saw) recurring token producers like Captain of the Watch and Cloudgoat Ranger
The Start Your Engines and Exhaust abilities arent present in the deck, leaving the energy synergy feeling fairly removed from the racer theme of the set
In addition to Pauper, the Angler has frequently shown its fangs in Legacy, Modern, Pioneer and Standard
That said, as long as cards like Dockside and Smothering Tithe are out there, cards that trigger off artifact ETBs will always be more powerful than they look
A 4-mana 4/2 with flying, lifelink and ward 2 can do a ton of work, and if your opponent cant find a way to deal with it quickly something that is difficult thanks to Ward, its going to end up causing all kinds of problems for your opponent
and they will trigger a Blood Artist or any other death trigger