Although Kyurem is the primary tier 5 Battle Raid boss for the next few weeks inPokemon GO, that isn’t stoppingthe Regi-trio from making a couple of appearances throughout the monthof December. Each weekend a third of the trio will appear in Legendary Raid Battles for a few days, starting with Regirock showing up tomorrow to cause some trouble.

Regirock is a pretty popular Pokemon, despite mixed opinions about the relevance of the Regi-trio inthe Pokemon GO metagame. That means that this weekend will be very popular for Battle Raids and trainers will be out in full force making sure that they churn through enough Battle Raids to earn an encounter with a Regirock who has an appropriately impressive IV. To do that,Pokemon GOplayers will take to verify they take some time to optimize an idea counter roster for the big fight.

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Regirock, as the name suggests, is a pure Rock-type, which makes understanding its counters fairly simple and there are a lot of great options. Considering the addition of some new Pokemon to the game andthe new option of Mega Evolutions, many players will still want to optimize their roster once more, even if they already did so over the summer. As usual for Regirock battles, players should put their focus on Steel, Water, Fighting, Ground and Grass types. With that in mind, here are some of the top options that players should consider powering up before heading into their first Battle Raid this weekend…

Gengar (Mega) - Lick Focus Blast

Swampert - Water Gun Hydro Cannon

As always, keep in mind that this is the ideal list of counters, but there are plenty of other acceptable choices for players who are running short on Rare Candy and TMs or just don’t have a massive collection of Legendary and Mega Pokemon to select from. The most important thing is to take advantage of Regirock’s weaknesses and head into the fight with a decent number of friends.

As trainers continue working through these amazing events and enjoying the early days of the GO Beyond update, they may want to keep hunting downthe best Unova Pokemon in the gameif improving their Battle Raid rosters and completing their Pokedex is their primary goal. Be sure to check back in the near future for morePokemon GOstrategy guides, news, and updates. Until then, good luck out there, trainers!

Pokemon GOis available on Android and iOS.