Forest Substrate

 is a potion.

Obtaining

 * Crafted by an Alchemist (Lv. 100) from
 * 1 Aspen Plank
 * 1 Ebony Plank
 * 1 Oliviolet Plank
 * 1 Kaliptus Plank
 * 1 Dark Bamboo Plank
 * 1 Maple Plank
 * 1 Cherry Plank
 * 1 Potion of Old Age

Uses

 * Used in the craft of
 * All powerful Trophies