Great Tree Mistilteinn

is a World Tree Magic spell.

Description
With an open grimoire, the user spreads roots over a wide area. These roots absorb the mana of everyone within the area. Once enough mana is absorbed, the user creates a large tree that can capture the enemy and engulf a city.

Trivia

 * Misteltein is Norwegian for "mistletoe" and is the name of a sword from Norse mythology.