Here’s my thoughts on the weird crystals in Sun and Moon:
Everyone’s so wrapped up in thinking that they are the Burst Crystals from an obscure Pokemon manga from gen 5, but I think differently about this.
TLDR: Solgaleo and Lunala energize each other. The yellow/blue crystal emits Solgaleo/Lunala’s energy, and is used to summon Lunala/Solgaleo. The crystals are also used to fuel Mega Evolution (if it still exists), as well as provide a new mechanic involving Pokemon moves, which Prof. Kukui researches.
Fennekin ─> Braixen ─> Vulperato (Trade w/ Red Card)
Signature Move: Scorch Mark Type: Fire Category: Special PP: 10 Attack: 60 Accuracy: 100 Effect: The user brands the target with a fiery symbol, leaving a severe burn. Its burn damage worsens every turn.
Abilities: Mediation (Since this Pokemon is already a sleep it can not be put to sleep it also)
Special Move: Hypno Wave (only Pokemon that are in constant sleep and that are level 99 can learn this move, it puts to sleep all Pokemon surrounding the user)
Weight: 2013.2 lbs
Bio: Sagelax, the wise Pokemon; it is in a constant state of meditation and its sleep for most of the time only waking to eat one meal a month (sugarcane segment). Though trainers be ware if this Pokemon opens its eyes, it will put every person and Pokemon to sleep within a 3 mile radius.
Location: This Pokemon can not be found anywhere; It must be evolved from a Snorlax while holding a king rock and level up to 99.
Chespin ─> Quilladin ─> Burrlin (Trade w/ Energy Root)
Signature Move: Bushwhack Type: Grass Category: Physical first attack, Special second PP: 20 Attack: 70 Accuracy: 100 Effect: The user clubs the target with a wooden staff. On the next turn, brambles erupt from the ground causing damage and ensnaring the target.