- You all can head to smogon's strategy dex and look up what these abilities do. But why should we choose either of these? Isn't guts better? Yes, Guts is better. It activates under paralysis, burn, or poison/toxic. Flare Boost activates only under burn. Toxic Boost activates only under poison/toxic. But that is why I am suggesting them. They are riskier than Guts.
More so, Psychics have a tendency to favor SPA. Flare Boost, unlike Toxic Boost and Guts, boosts SPA. So, while Flare Boost would be riskier than Guts, in that it is more unlikely to activate, the reward would likely be more beneficial considering the typing.