Anyone have any idea what deck this is?

it's the field and his graveyard o:

ah, he uses blasting the ruins or something after..

Yeah it's a Blasting Ruins deck lol

Wow! I do not know what even that is or what it could be. It sounds like a self-destruct. D:<

This deck is most commonly known as Magical Explosion FTK.

So what are the keycards? The Traps: "Magical Explosion", "Wall of Revealing Light" and "Life Equalizer", and most importantly... "Upstart Goblin" x3 (later will be explained why Upstart is so important).

Basicly, you have a 15 minute turn going through all the card in your deck. You use 3 upstart Goblins. Opponent's LP rise to 11,000.
You use "Into the Void" to discard all your cards during the EP in order to activate "Magical Explosion" next turn.
You set "Life Equaliser". "Magical Explosion" and "Wall of Revealing Light".

During your opponent's next turn (during his SP) when he has 11,000 LP, you activate "Wall of Revealing Light". Reduce your own LP to 3,000 (or less) in order for "Life Equaliser" to activate. For this reason you should run 3 "Upstart Goblin"s to make it easier to activate Life Equaliser!!
Then, when both your and your opponent's LP are 3,000 , you activate "Magical Explosion". You will be running approximately 30 Spell Cards so your opponent's LP will drop to 0.
^This can all be done during the SP.

WORST CASE SCENARIO:
During your EP, when the effect of "Into The Void" activates and you have "Broww, Huntsman of Dark World" in your hand, you should always make sure to leave 1 card in your deck in case this happens!!!
When the effect of "Into The Void" activates, during the EP, while you have "Broww, Huntsman of Dark World" in your hand, its effect will trigger forcing you to draw 1 card from your Deck.
If you don't have any cards in your Deck while this happens and you can not draw, you will lose the game!