Duel 173 ( Duelist Duel 114): "Combo of Despair!!" a b Yu-Gi-Oh
The song released a year ago, and I've probably listened to it 3000 times or something"
There are a number of reasons that a deck could be flagged as invalid, including not having enough cards to meet the minimum number required or too many cards over the allowable maximum
It amplifies damage dealt by your other sources while also dealing damage itself, it has lifelink, and it plays exceptionally well with burn-based spellslinger payoffs like Electrostatic Field and Guttersnipe
Dont be afraid to sacrifice quite a bit of your board to cast an early Vipereven if they do remove it, squirrels is a deck that can recover from behind quite well
Nonetheless, it is still very popular in Stun decks, in which it usually protects the backrow floodgates from enemy removals