[s2e7] Camp Fear -

: Ben eventually realizes that the fungi are susceptible to Grandpa Max's athlete’s foot powder , using the chemical to wither the core of the Mycelium and stop the invasion at its root.

During the battle against the massive fungal entity known as the Mycelium, the glitches due to the fungal spores and accidentally unlocks a new alien form for Ben: Wildvine . [S2E7] Camp Fear

With the fungus defeated and the campers rescued, the group leaves the "Camp of Fear" behind, though Ben and Gwen's birthday rivalry remains as heated as ever. "Ben 10" Camp Fear (TV Episode 2006) - IMDb : Ben eventually realizes that the fungi are