If you control "Junk Warrior", "Assault Mode Activate", or a card that mentions either of those cards: You can Special Summon this card from your hand. If this card is Normal or Special Summoned: You can add 1 "Synchron" monster or 1 "Assault Mode Activate" from your Deck to your hand. If this card is sent to the GY as Synchro Material: You can make all monsters you control gain 500 ATK, for the rest of the turn. You can only use each effect of "Assault Sonic Warrior" once per turn.