MARVEL RIVALS LOKI LORE:

Loki has watched and caused the Yggdrasil tree fuse with the energy of Chrono Cells (Golden Balls), Loki seeing this creates devices to drill into this tree and such out its energy as much as possible

While doing so he has team up with Hella to dethrone Thor and Odin, while Loki replacing as the NEW KING OF ASGARD

In the entire maps when you see blue energies or crystals, those are the tree powers Loki has sucked up, making the entire world run with this magic from now

He is also planning to fully rule over the entire world through this, as apparently he has some plans for Ragnarök?