If the effect of ' Reverse Trap' is being applied, the effect of ' Metalmorph' that increases 300 ATK and DEF, reduces 300 ATK and DEF instead.In the end, ' Flash Assailant' ATK will be 6000. In this case, if you have 5 cards in your hand and your Life Points is less than your opponent's, if ' Reverse Trap' is activated, the ATK of ' Flash Assailant' becomes 4000 by doubling its ATK by the effect of ' Megamorph', then instead reducing the ATK of ' Flash Assailant' by 2000, it ATK is increased by 2000.
Thus, you cannot activate ' Reverse Trap' during the Damage Step. No damage will be inflicted in that case.
