The Heroes Approach
-----
Rivers of gooey black ooze filled a large forest, as purple-colored mist filled the place with poisonous gases, most of the wildlife here had perished already, and the trees were coated in this black ooze, mutating into monstrous creatures.
The trees grew larger and taller, as their wood turned completely black and red, gaining many eyes and giant hooves which they used to walk with their roots. The upper branches of these monstrous trees held fruits which were also giant eyes, and each branch could move like tentacles.
However, a radiant slash of pure light and fire emerged from the skies, falling over one of such trees.
"Radiant Slash!"
FLASH!
The radiant slash of light and fire burned through the large, ten-meter-tall, mutated tree monster, as its remains quickly turned into ashes.
"Guuuooooonnn…!"
The beast turned into ashes as it dropped a large, purple-colored crystal, a Mana Core of Rank 4.