The color wouldn't be able to deal with anything permanently, but would instead just keep putting off its problems on the theory that it would win before it has to deal with them
That's why we now have a list that goes from Tier 0 (Titans) to Tier 7 (Mid Power) and a secondary list that has Tier 8 (Low Power) - 10 (Jank/Trash)
Flayer of Loyalties Flayer of Loyalties is expensive at 10 mana, but it has the best threaten effect on an ETB
Meanwhile, Rakdos Madness and Jeskai Flashback come in at the bottom of our list, with Rakdos Madness especially struggling with categories related to value, while Jeskai Flashback suffers from having Sevinne, the Chronoclasm as its face commander, not only giving it low scores in the face commander category but bringing down its upgrade score as well
Be prepared for a lot of rules interaction and different layers being affected by the different rules
Honorable Mentions: Jegantha, the Wellspring + Samut, Voice of Dissent + Pako, Arcane Retriever Since I mostly consider these cards for Commander purposes, Jegantha, the Wellspring is a square peg