Intermediate #11 Dual Hero Summon Gravekeeper's Assailant. Activate Spell Reproduction and select Heart of Clear Water by discarding Banner of Courage and Tailor of the Fickle. Activate Ojama Trio. Activate Heart of Clear Water and select Ojama Token. Activate Necrovalley. Switch to Battle Phase. Attack the equipped Ojama Token with Gravekeeper's Assailant and switch it to attack posistion. Attack the equipped Ojama Token with Zombyra the Dark. Attack the equipped Ojama Token with Zombyra the Dark.