Please bear in mind there is an ANNOYING glitch associated with this deck.
If your opponent has 2 cards remaining in their deck and your Hiro or Warm Worm is activated, they will NOT deck out and lose. They just discard their remaining 2 cards and you do not receive the deck-out win until their following draw phase or until a second Hiro/Warm Worm is activated while they have 0 cards remaining.
I've lost so many games because of this glitch x.x
I also have no idea if it still glitches if Hiro/Warm Worm is activated while your opponent has 1 remaining card in their deck.
If u activated hiro's effect while their deck contain 2 or less card, it should be deck out. But if you activated warm worm's effect while their deck contain 2 or less card, it wont be a deck out cause it was not drawing a card, it was discarding a card from their deck to graveyard. So if you activated the warm worm's effect, make sure u can survive that turn before ur opponent deck out
It's not a glitch, it's the mechanics. A deck out is achieved when there are insufficient card(s) to fulfill a draw condition. Warm worm sends cards to the graveyard vs. Hiro forcing the opponent to draw card(s). Similarly, GHQ will not cause a deck out victory while a cup of ace can.
As a MTG judge I can tell you that is not entirely true . You can not lose with a deck out until you are forced to draw. If you have 6 cards in deck and I mill u for 10 you don't auto lose. Now if you have 6 cards and I make you draw 10 as soon as you draw card 7 you lose