Lightning Flash

[Dragulas]

Quick-Play Spell Card

Send 1 monster from your hand or field to the GY; destroy all of your opponent's face-up monsters whose DEF is less than or equal to the sent monster's original ATK or DEF (whichever is higher). You can only activate 1 "Lightning Flash" per turn.

 

A disruption spell that can be used in  a variety of decks, depending which, it has its best use as it provides disruption to big beaters all-out decks (blue eyes or just big dragos), or for a more generic use to destroy combo pieces before they turn into a problem (boss), link monsters were left outside of its scope. Not a combo piece and require a card of your own to activate will make this somthing below and above a common boardwipe at the same time.

[Sleepy]

The lack of ranging Links does hinder it a bit, and otherwise it is somewhat competing with Lightning Vortex more than anything else (as in, I think it is not at a problematic level, and there are a few parallels). It is a nice touch that it is a quick effect, and discarding a monster is not a problem, though the best setup scenarios prefer small monsters, outside of decks like the mentioned Blue-Eyes that can always have an extra beater in hand.

 

It might not really scope a ton of targets, and it wants at least 3 monsters to destroy to be on a consistent plus (or well, 2 monsters and have your discard trigger, that's also fine).

 

Oh, and there's the note that your card doesn't operate under something like Dark Law, which is the bigger nuance I might find for it.

All in all, the card is interesting.