Rillaboom with the Mightiest Mark has arrived in Pokémon Scarlet and Pokémon Violet black crystal Tera Raid Battles! Start beating the drums of battle, because you can challenge the Drummer Pokémon from Thursday, July 27, 2023, at 5:00 p.m. PDT to Sunday, July 30, 2023, at 4:59 p.m. PDT. Rillaboom cannot normally be encountered in Paldea, and the Rillaboom appearing during this event has Normal as its Tera Type. Be prepared—this Pokémon is a formidable foe, and it’s got the Mightiest Mark to prove it! If you miss the opening act, Rillaboom will be returning for an encore from Thursday, August 3, 2023, at 5:00 p.m. PDT to Sunday, August 6, 2023, at 4:59 p.m. PDT.

For the opportunity to encounter this Pokémon in Tera Raid Battles, you’ll need to have downloaded the latest Poké Portal News. You can do this by selecting Poké Portal from the X menu, then Mystery Gift, then Check Poké Portal News. After that, whenever you see a sparkling pillar of light shining from a Tera Raid crystal, you can walk up to the crystal and interact with it to start a Tera Raid Battle with a Tera Pokémon.

To challenge Rillaboom, Trainers will need to either complete the postgame events that follow the main story or join a 7-star Tera Raid Battle hosted by a Trainer who has completed those events. This special Rillaboom can be caught only once per save data. You can still participate in Tera Raid Battles against this Rillaboom if you’ve already caught it to obtain other rewards—including significant amounts of Exp. Candy for leveling up your Pokémon, treasures that can be sold at Pokémon Centers, items for improving your Pokémon’s stats, and Normal Tera Shards for changing your Pokémon’s Tera Type.

Be warned: Rillaboom is certain to put up a tough fight. If you’re looking for some tips on how to defeat this powerful Pokémon, head on over to our Tera Raid Battle Tips article. Learn the ins and outs of Tera Raid Battles in the Paldea region so that you never miss a chance to catch a powerful Pokémon or earn handsome rewards.