Tribute 1 Synchro Monster; Special Summon 1 "/Assault Mode" monster from your hand whose name includes the Tributed monster's name. (This is treated as a Special Summon with "Assault Mode Activate".)
During your Main Phase: You can banish this card from your GY; Set 1 "Assault Mode Activate" directly from your hand or Deck.
It can be activated this turn.
You can only use each effect of "Assault Mode Zero" once per turn.