Pokémon Quest #17 - Happenstance Island 4

Recommended Team Strength: 30,000
At this point, it's very unlikely you'll be able to reach the recommended strengths for the rest of Happenstance Island's levels, so you'll have to rely on strategies to beat them. I recommend lots of Hit Healing and a support mon to buff your attack and defense.
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Doing five expeditions of the fourth level of Happenstance Island.