It's control because 71% of the deck is counters.
It's combo because it wins with a weird interaction of a lot of cards.
It's casual because it only works with no ban list.
It's competitive because it wins on the first priority of the game 100% of the time goldfishing and likely close to 100% of the time in reality due to 5 counters in the starting hand.
It's complicated because Complicate wins the game.
(It would be cheap but for Pact of Negation's price.)
Card choices
The 33 ante cards (Darkpact, Rebirth, Demonic Attorney etc) are removed from your deck before the game starts, leaving a 27 card deck.
4 Advantageous Proclamation each reduce your deck by 5 cards, counting for a total of 20 cards and effectively reducing your deck size to 7 cards: your starting hand.
2 Brago's Favor reduces the cost of Laboratory Maniac to .
4 Sentinel Dispatch gives you 4 1/1 Construct creatures.
Immediate Action gives your Constructs haste.
Secrets of Paradise lets your hasted Constructs tap for any mana color.
2 Muzzio's Preparations makes your Laboratory Maniac a 4/4 and Simian Spirit Guide+Lightning Bolt proof.
Power Play makes you start the game first. Doesn't really matter to be perfectly honest, but just in case.
Leyline of Anticipation starts the game in play and lets the combo go off at instant speed in the first upkeep step of the game.
Laboratory Maniac is your win condition.
Complicate lets you cycle to draw immediately. Can also act as the 5th counter which then draws a card, for example if your opponent tries to stop the combo via removal instead of countering.
4x Pact of Negation protects your combo.
How to play
Remove the 33 ante cards from your deck since you aren't playing ante. If you are playing ante, forfeit.
Put your entire sideboard of Conspiracy cards into your command zone. Choose Laboratory Maniac for Brago's Favor & Muzzio's Preparations. Choose Construct for Immediate Action & Secrets of Paradise.
Your library is now 7 cards. Draw your starting hand. Put Leyline of Anticipation into play. The rest of your had consists of 4 Pact of Negation, Laboratory Maniac, and Complicate, and you have no cards in your library.
In the first player's upkeep, Sentinel Dispatch produces 4 Constructs. Tap 1 Construct to produce and cast Laboratory Maniac at instant speed because of the Leyline. If it resolves and it's your turn, you can just pass priority and win on your draw step. If it's not your turn, tap the last 3 Constructs to cycle Complicate for the win. Protect your Maniac with the 4 Pact of Negations.
Alternate version
Replace Complicate with Street Wraith and one Pact of Negation with Trickbind for protection against Spirit Guides.
