How to get it
- Win the corresponding Primal Raid when available, or claim research that awards that energy.
- After registering the relevant Primal Reversion, walking an eligible buddy can earn matching energy.
How to use it
- Select Kyogre or Groudon and inspect the Primal Reversion cost.
- The first reversion costs energy. Later use depends on that individual’s progression, rest period, and remaining cost.
Worth knowing
Primal Reversion and Mega Evolution share the active transformation slot: activating another replaces the current one.
Neither Kyogre’s energy nor Groudon’s energy can substitute for Fusion Energy or Crowned Energy.
Plan the active form around the group
Primal bonuses work differently from the usual active-Mega raid bonus: Primal Groudon and Primal Kyogre can support other Trainers’ attacks simply by being present in the raid team. Their boosted type groups also extend beyond their own typing.
Primal Groudon supports the sunny-weather group of Fire, Grass, and Ground; Primal Kyogre supports the rainy-weather group of Water, Electric, and Bug. This makes team composition relevant when choosing which energy reserve to spend.
A Trainer can have only one active Mega or Primal transformation at a time. Starting another replaces the existing one, so coordinate the choice with both your own team and the attacks other Trainers intend to use.
Sources & further reading
- Pokémon GO: A Quantitative Approach by nick blackVersion 1.0.6 (October 4, 2026), §2.5, pp. 11–12; §8.2, pp. 82–84; §8.2, pp. 82–83 and footnote 4; §10.2, p. 130
Event rewards, shop offers, and limits can change. Check the current in-game description for event-specific rules. Worked examples are illustrative calculations.