Pokemon Go’s latest season, Forever Forward, officially begins on June 2, and the mobile game is ushering it in with a host of events this month. Some fan-favorite legendaries and Mega Pokemon are returning to Raids over the next few weeks, while the elusive ice dragon Frigibax is taking center stage for June’s Community Day. That’s not all that’s happening in the mobile game. Team leaders Spark and Candela are holding their own research quests in June, and another Mega…