How often are we changing our form?
I think it is a bit early to have a concrete answer to this question, and I agree with DBD that it will end up being as often as we need to. There are a variety of situations when we'd want to use Relic song in either form. For example, in the defensive form, we can use it to transform to sweep, or if Relic Song + another attack in sweeper form 2HKOs. The sweeper form can use Relic Song to tank hits from Pokemon it can't OHKO, or even to snag a kill and preemptively become more resilient to potential revenge-killers. Additionally, either form can use Relic Song preemptively to flip the MU on certain switch-ins. Of course, these use cases are not exhaustive; I think the specifics of how often we change form depend greatly on how we implement the two forms in terms of typing and stats, and I think it is better to try and create two cohesive forms and let players figure out how best to use the transformation.
That being said, it would be a massive failure if Relic Song were not used at all, so I guess that is a consideration to keep in mind.
What form of defense are we most benefited from?
CAP36 will likely take a similar route to defensive Pokemon that do not have recovery and/or do not fully invest in bulk, due to our challenges with EV investment and 4MSS. Some examples include AV Primarina, Landorus-Therian, and defensive Great Tusk, which lack recovery but still are used as key defensive pieces in many teams. These Pokemon share strong typing (immunity and various relevant resistances), solid natural bulk, and solid offensive stats which allow them to trade with the Pokemon they are switching into. They are not really walling in the same way a Blissey or Dondozo would, but rather switching in, threatening to outtrade, and making progress with pivoting or utility. I think this plan works well with our concept because it somewhat addresses our challenges, while also encouraging use of Relic Song to end games as CAP36 will not have the longevity to compete with defensive staples such as Arghonaut, Gliscor, Corviknight, etc.
I am against running low-momentum moves like Recover. Longevity via Leftovers (Heatran/Equilibra), draining moves (AV Hoopa-U) or Regenerator would fit this concept much better because they would aid in CAP36's more proactive gameplan.
An interesting note is that Relic Song can situationally act like a Custap Berry, allowing CAP36 to trade more effectively by moving before an opposing Pokemon after transforming. This is an interesting interaction that can aid in its ability to outtrade offensive threats.
I think it is a bit early to have a concrete answer to this question, and I agree with DBD that it will end up being as often as we need to. There are a variety of situations when we'd want to use Relic song in either form. For example, in the defensive form, we can use it to transform to sweep, or if Relic Song + another attack in sweeper form 2HKOs. The sweeper form can use Relic Song to tank hits from Pokemon it can't OHKO, or even to snag a kill and preemptively become more resilient to potential revenge-killers. Additionally, either form can use Relic Song preemptively to flip the MU on certain switch-ins. Of course, these use cases are not exhaustive; I think the specifics of how often we change form depend greatly on how we implement the two forms in terms of typing and stats, and I think it is better to try and create two cohesive forms and let players figure out how best to use the transformation.
That being said, it would be a massive failure if Relic Song were not used at all, so I guess that is a consideration to keep in mind.
What form of defense are we most benefited from?
CAP36 will likely take a similar route to defensive Pokemon that do not have recovery and/or do not fully invest in bulk, due to our challenges with EV investment and 4MSS. Some examples include AV Primarina, Landorus-Therian, and defensive Great Tusk, which lack recovery but still are used as key defensive pieces in many teams. These Pokemon share strong typing (immunity and various relevant resistances), solid natural bulk, and solid offensive stats which allow them to trade with the Pokemon they are switching into. They are not really walling in the same way a Blissey or Dondozo would, but rather switching in, threatening to outtrade, and making progress with pivoting or utility. I think this plan works well with our concept because it somewhat addresses our challenges, while also encouraging use of Relic Song to end games as CAP36 will not have the longevity to compete with defensive staples such as Arghonaut, Gliscor, Corviknight, etc.
I am against running low-momentum moves like Recover. Longevity via Leftovers (Heatran/Equilibra), draining moves (AV Hoopa-U) or Regenerator would fit this concept much better because they would aid in CAP36's more proactive gameplan.
An interesting note is that Relic Song can situationally act like a Custap Berry, allowing CAP36 to trade more effectively by moving before an opposing Pokemon after transforming. This is an interesting interaction that can aid in its ability to outtrade offensive threats.