Activate 1 of these effects;
● If your "Elemental HERO" monster attacks a Defense Position monster this turn, inflict piercing battle damage to your opponent.
● Target cards your opponent controls up to the number of "Elemental HERO" monsters you control; destroy them.
● Add to your hand, or Special Summon, 1 "Elemental HERO" monster from your GY.
● "Elemental HERO" monsters can attack directly this turn.
You can only activate 1 "H-E-R-O Flash!" per turn.