Dr. Stone Season 3 Episode 18 English Subbed Episode Title: Flicker of Doom Episode Description: Yō attempts to petrify Moz as he continues to duel Hyoga, but has no idea how Medusa is activated. Hyoga escapes to the island after Senku, trusting he has a plan as Moz chases him. It is revealed Hyoga was struggling in the fight as he is unused to Kinro's spear. Knowing this, Senku has begun crafting pieces to recreate a flexible kuda yari spear that Hyoga trained with for years. Now armed with his ideal weapon, Moz is overwhelmed by Hyoga's superior technique...