The front half's effects are exactly the same, and flashing back the Riches part of Rags // Riches will likely have about the same effect as casting a Rising Miasma with awaken
In reality, the effectiveness of this strategy is a confluence of many factors, with availability of mana-fixing being one of the least impactful
I plan to go through all the sets here one by one, and hope the information will both prove useful and generate feedback in order to improve the data
For example, the firebending ability will count experience counters that you got from the last ability, from another ability, from another copy of Zuko, Firebending Master, and so on
Sokka, Tenacious Tactician This four-drop legendary dork in Jeskai colors is with menace and prowess and then gives them all both abilities