Suicune Trio Guide
Suicune returns to Raids as part of the 2019 Global Challenge Rewards. Unfortunately, Suicune's Base Attack is 180, which means it's not very useful for raiding.
For context, Vaporeon has a Base Attack of 205, and Kyogre has a Base Attack of 270. Being a defensively-oriented Legendary in Pokemon Go just doesn't get you very far in terms of PvE meta-relevance. That said, the possibility of getting up to 24 Rare Candies per Raid may be enticing enough to stay out of large 20-person lobbies.
- Extrasensory hits Venusaur and Roserade a little bit harder than Snarl, due to their secondary Poison-typings.
- Ice Beam hits Grass-types for super-effective damage, but Suicune's 180 Base Attack means even Grass-types can tank an Ice Beam and survive.
- Hydro Pump has high Base Power and is boosted by STAB, but again, 180 Base Attack.
- Water Pulse and Bubble Beam are mild annoyances.
- Rain boosts the power of Suicune's Water-type moves, but it also boosts the power of your own Electric attackers. With Rain, the duo may be possible with Electivire, Raikou, and extremely good RNG.
- Sun boosts the power of your Grass-type attackers. If you have a team of strong Grass-types, they will outperform your Electric-types under Sun against every moveset except Ice Beam.
Viable Counters
Minimum viable levels assume Best Friends, No Weather.
Italics indicate a Legacy move.
Use Electric-types and Grass-types. Neither Bubble Beam nor Water Pulse pose much of a threat, so your main concern is running out of time.
Although some Pokemon listed here like Vileplume are technically capable of trioing Suicune, they are strictly inferior to the better options like Roserade. Whether you want to put 200k Stardust into a Vileplume is up to your own discretion.
Grass-types, Electric-types, the same stuff as above except powered up a little higher, because Hydro Pump hits a little harder.
Against Ice Beam, Electric types are king, due to not being weak to Ice. Suicune's Ice Beam is nowhere near as deadly as Kyogre's Blizzard, though, and the top Grass-types are still viable for the trio at higher levels.