Dynamax Crystals in Pokemon Sword and Shield are rare items given to players during specific events or as pre-order rewards. They allow players to summon specific Pokemon during Raid Battles in the game's wilderness area.
How to use Dynamax Crystals ☆ And428 and ☆ And15 in Pokemon Sword and Shield
When you get a Dynamax Crystal, you will need to use it in the wild area of the game. You will have to fight an empty lair, the glowing red rocks, which does not have a ray of light coming from it. Go to the Object menu and select the Dynamax crystal you wish to use, and this will activate the Den.
This will initiate a new Raid with the type of Pokemon attracting the Dynamax crystal. You can take part in it alone or by playing with your friends. You can then fight the Pokemon, weaken it, and attempt to catch it. These Dynamax Crystals are disposable items, so make sure you're fully prepared for your battle, because you won't get another hit.
The ☆ And428, ☆ And15 crystals will call out Jangmo-o and Larvitar. The simplest way to think of crystals is as a form of bait for a particular Pokemon.
To increase your chances of catching Pokemon, it is best to take part in these raids with friends, as you can all work together and coordinate your efforts to catch them.
