The latest iteration of the Team GO Rocket Takeover event in Pokemon GO sees the Team GO Rocket Leaders, Sierra, Cliff, and Arlo, sport new team combinations to challenge trainers around the world. The occasion also sees the arrival of Shadow Regice in Giovanni's battle kit.The Team GO Rocket Takeover event began on Saturday, March 25, at 10 am local time, and will continue until Wednesday, March 29, at 8 pm local time. New Shadow Pokemon like Alolan Grimer, Phanpy, Treecko, Torchic, and Drifloon have been added to the mix, with trainers also being able to encounter shiny Shadow Pokemon from Team GO Rocket Grunts for the first time.This article guides readers on how to beat Sierra, details his weaknesses, and offers the best possible counters to his battle team in Pokemon GO.Pokemon GO guide: Steps to beat Sierra during the Team GO Rocket Takeover event in March 2023As with other Team GO Rocket Leaders, Pokemon GO trainers will be able to encounter Sierra once they defeat enough Team GO Rocket Grunts to assemble and equip the Rocket Radar. She can appear in both PokeStops under the control of Team GO Rocket and in hot air balloons.The first phase of Sierra's battle (Image via Pokemon GO)Sierra's first Pokemon choice for the battle will remain the same every time. Murkrow is a Generation II pocket monster with a Dark and Flying dual-type combination. It is weak to Rock, Electric, Ice, and Fairy-type moves. The best possible counters against Murkrow (Shadow) in Pokemon GO are as follows:Zekrom with a moveset of Charge Beam and Wild ChargeRampardos with a moveset of Smack Down and Rock SlideElectivire with a moveset of Thunder Shock and Wild ChargeRhyperior with a moveset of Smack Down and Rock WreckerRaikou with a moveset of Thunder Shock and Wild ChargeThe second phase of Sierra's battle (Image via Pokemon GO)For her second Pokemon, she chooses from the three following options - Staraptor (Shadow), Steelix (Shadow), and Swampert (Shadow). The first option is a Normal and Flying dual-type Generation IV pocket monster that is weak to Rock, Electric, and Ice-type moves. The best possible counters for this matchup are as follows:Rampardos with a moveset of Smack Down and Rock SlideZekrom with a moveset of Charge Beam and Wild ChargeElectivire with a moveset of Thunder Shock and Wild ChargeRhyperior with a moveset of Smack Down and Rock WreckerSteelix is a Generation II dual-type pocket monster with a combination of Steel and Ground. It is weak to Fighting, Ground, Fire, and Water-type moves. The best possible counters for this matchup in Pokemon GO are as follows:Terrakion with a moveset of Double Kick and Sacred SwordLucario with a moveset of Counter and Aura SphereChandelure with a moveset of Fire Spin and OverheatBlaziken with a moveset of Counter and Blast BurnKingler with a moveset of Bubble and CrabhammerConkeldurr with a moveset of Counter and Dynamic PunchSwampert is a Water and Ground dual-type Generation III pocket monster that is weak to Grass-type moves. The best possible counters for this matchup are as follows:Kartana with a moveset of Razor Leaf and Leaf BladeRoserade with a moveset of Razor Leaf and Solar BeamTangroth with a moveset of Vine Whip and Power WhipCelebi with a moveset of Magical Leaf and Leaf StormZarude with a moveset of Vine Whip and Power WhipThe third phase of Sierra's battle (Image via Pokemon GO)The final Sierra Pokemon in the battle will be one of the following - Charizard (Shadow), Houndoom (Shadow), and Dragonite (Shadow). Charizard is a Fire and Flying Generation I pocket monster that is susceptible to Rock, Water, and Electric-type moves. The best possible counters for this matchup in Pokemon GO are as follows:Rampardos with a moveset of Smack Down and Rock SlideRhyperior with a moveset of Smack Down and Rock WreckerTerrakion with a moveset of Smack Down and Rock SlideKingler with a moveset of Bubble and CrabhammerHoundoom is a Generation II dual-type pocket monster sporting a combination of Dark and Fire. It is weak to Water, Fighting, Ground, and Rock-type moves. The best possible counters for this matchup are as follows:Terrakion with a moveset of Double Kick and Sacred SwordRampardos with a moveset of Smack Down and Rock SlideLucario with a moveset of Counter and Aura SphereKingler with a moveset of Bubble and CrabhammerDragonite is a Generation I pseudo-legendary pocket monster with a Dragon and Flying dual-type. It is weak to Ice, Rock, Dragon and Fairy-type moves. The best possible counters for this matchup in Pokemon GO are as follows:Mamoswine with a moveset of Powder Snow and AvalancheWeavile with a moveset of Ice Shard and AvalancheGlaceon with a moveset of Frost Breath and AvalancheJynx with a moveset of Frost Breath and AvalancheCloyster with a moveset of Frost Breath and AvalanchePokémon GO@PokemonGoAppWe’ve received reports that Team GO Rocket might transform their efforts and are trying to change more species of Pokémon into shadow in their schemes. Stay alert, Trainers! #RisingHeroes4858407We’ve received reports that Team GO Rocket might transform their efforts and are trying to change more species of Pokémon into shadow in their schemes. Stay alert, Trainers! #RisingHeroes https://t.co/VCInQp0tffDefeating Sierra will allow Pokemon GO trainers a chance to catch Murkrow (Shadow). A shiny variant of the Shadow Pokemon has a chance of appearing. Furthermore, successful players will also get a 12km egg from this battle.