That Wasn't Armor?!
After the sudden appearance of the gigantic tree, the elves started feeling changes in their bodies.
"This... My mana is increasing?"
The astute ones quickly noticed the sudden increase in their mana capacity. It was upped by at least one rank, two at most. Before, they had an average of C+ to B- rank in mana, but now, some were even crossing the A- tier.
The changes weren't limited to that, however. As the offshoot of the World Tree Yggdrasil was successfully planted in their world, a new race was introduced with an extremely high similarity to the elves.
From the barks, roots, and leaves of the World Tree, little flying humanoid figures started appearing, floating aimlessly around. They were a race of spiritual creatures called pixies. Although they look cute, they're extremely playful, almost bordering on evil.