After beating the Elite Four, you’ll battle Cynthia. She has a full team with Pokémon knowing all sorts of great moves. Spiritomb will lead off with Embargo to prevent opponent from using items for 5 turns. It will also use Dark Pulse to make targets flinch and raise its stats using Silver Wind. Roserade will use Sludge Bomb to poison opponents and make them flinch using Extrasensory. Gastrodon will use Muddy Water to make opponents less accurate and Stone Edge for more critical hits. Lucario will use a never-miss move, Aura Sphere. If you use special attacks too much against Milotic, it will use Mirror Coat. Garchomp will be the tough part as its Dragon Rush move can make targets flinch 30% of the time as it strikes. After the battle, you’ll unlock some post-game quests. ... https://www.youtube.com/watch?v=CWCxTSGQ6Mk
Jump a trampoline in the mines and Croco will steal your coins. Continue to explore the mines and you’ll find Croco. The battle is just like in the previous meeting as it will tackle opponents and throw bombs. After Croco surrenders, you’ll get your stuff back and a bomb that can be used to blast a wall somewhere in the mines.
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https://www.youtube.com/watch?v=ER4LQgLZhwo
Skyla is one of the Unova Leaders in the Pokémon World Tournament that can be battled in either the Unova Leaders or World Leaders Tournaments. Skyla is skilled in using Flying type Pokémon. Swanna will use Tailwind to speed its team up for 3 turns and Scald to burn opponents. Jumpluff will use Acrobatics while a Flying Gem powers it up for once. Drifblim will use Icy Wind to slow opponents down. Archeops will use Stone Edge for critical hits. Braviary will use Brave Bird for big damage and when it uses Superpower, it catches a break for once with a White Herb. Mandibuzz will use Nasty Plot to power up and Roost to restore its HP. A move like Thunderbolt works best against the opposing team.
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https://www.youtube.com/watch?v=lSNFgjZy730
Open a treasure chest containing the Genji Helm and Tiamat will come in to battle you. Tiamat has tier 16 spells that consist of fire, ice, poison, and lightning. Should you intend to use your own fire, ice, lightning, or poison spells, Tiamat will absorb them into healing. The spell you might want to use is the ones that could give Tiamat the slow status condition and then to boost your own stats. After the battle, continue to explore the castle.
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https://www.youtube.com/watch?v=cH2pJS0hEJ8
At the start, you’ll see Buzzy Beetles, Goombas, and Koopas. Pass some pipes with Piranha Plants lurking and go down one of them to collect coins underground. Back on the surface, hit an invisible block by a Paratroopa and a garbage block above it for multiple coins. By a set of garbage blocks, hit one for a Star and you’ll see more enemies up ahead. After crossing over various holes, you’ll see a broken stairway that leads to the flagpole.
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https://www.youtube.com/watch?v=bIhHcUnyf2A
The walls that are shaded indigo are the false ones, so make sure you study the contrast of colors carefully. Even the spikes in indigo are fake, but the blue ones are real. After climbing a few ladders, you’ll encounter some hatchers that release plasma worms. Descend a few sections and you’ll next encounter a clown on a grinder. Where some suction propellers appear, use Item 2 to easily get across the spikes. Enter the cap door and you’ll next take on a gorilla bulldozer. The forehead of the gorilla will release some pellets. Use the Cakram Shield on the head to deal more damage. Defeat this bulldozer and you’ll advance to the next stage.
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https://www.youtube.com/watch?v=tefi6KyGT1I
Climb the vine and you’ll see Beezos along with Flurrys incoming. You’ll find the first 2 A Coins as you go along. Continue ahead and you’ll find the door to enter the whale zone. The whales will spout water so board where they spout water and don’t touch the walls of the spouts. Snifits and Shy Guys are on some whales plus a pipe warps you to World 6. You’ll find 2 A Coins, each over the tails of whales. Continue ahead and pull a vegetable to have a rocket take you to the mountains. The 5th A Coin floats high just before the pit of spikes so power jump to get it. Board an Autobombs over spikes and you’ll see Porcupos. Enter the door to the boss room and hit Birdo with objects 3 times to grab the jewel and open the Mask Gate.
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https://www.youtube.com/watch?v=VruVDB1WqDU
Enter the castle and Toad will explain that the king has transformed. This airship has cannons that shoot flames. Continue far ahead and go down the pipe to battle Iggy Koopa. Iggy jumps high and will unleash sonic waves from the stolen wand. Stomp Iggy 3 times to take back the wand and the king will return to normal. You’ll receive a letter from the princess that explains that there was a Fire Bro that stole the wand located at the eastern portion of World 2. You’ll also receive an Infinite P Wing.
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https://www.youtube.com/watch?v=AFlJWzNhQZU
Open a treasure chest containing the Flame Sword and an enemy ambush will trigger. This battle features a single Fiery Hound. The Fiery Hound is somewhat strong and will sometimes strike your entire team with a scorching blast of fire. It is weak against ice spells, but fire spells will heal it instead of damage it. After the battle, continue to ascend the tower.
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https://www.youtube.com/watch?v=-_UNODprbFU