Gameplan

Get at least one Enhanced Surveillance down ASAP, and use powered-up surveil to dig through your deck to find all 4 copies of Hedron Alignment. You want two in the grave (to delve one) and two in hand (to cast one).

> Deck Tech

If you untap with a Hedron Alignment on board, you're allowed to respond to the upkeep trigger. You can potentially win on your upkeep having only seen one Hedron if you can surveil two into the grave, delve one with Dig Through Time, and put the last into your hand with that effect. Tapping out to dig for Hedrons in response to the upkeep trigger is a great way to steal a win when you know you're not getting another turn, but don't try it without a compelling reason because holding up interaction can get you there more consistently if you aren't otherwise stone-dead.

> Graveyard

Too many Hedrons in the grave means you'll have to crack an Enhanced Surveillance to put them back into the deck.

• Graveyard-to-Exile: You can also crack Enhanced Surveillance to save Hedrons from triggered or activated graveyard exile effects (and if you delve aggressively enough you won't have to slog through extra cards to find them again).
• Library-to-Graveyard: Mill is a weird matchup, because if you can get two in your hand before they mill too many cards (and they don't hit two Hedrons with mill-to-exile effects) then the mill can actually make it easier for you to win, since the upkeep trigger happens before you deck out.

> Hand

Too many Hedrons in hand means you'll have to cast and counter it to get it into the grave, or overdraw with Treasure Cruise to discard to hand size.

• Library-to-Hand: If you don't know where Hedrons are in your deck and you already have some in hand, you may want to surveil before casting Treasure Cruise to minimize the chance of drawing too many.
• Hand-to-Graveyard: Discard can also be a good matchup if you can use their disruption to bin Hedrons or Otherworldly Gaze.

> Exiled

You can't interact with Hedrons that are in exile, so you lose if more than one ends up there.

You have counterspells and a degree of graveyard interaction to prevent this, but opponents with disruption can still move Hedrons from other zones to exile with cards like Farewell, Agonizing Remorse, or Dissipate. Play patiently and hold up interaction if you suspect your opponent may have such a card.

> Sideboard

This deck struggles against static graveyard hate (Leyline of the Void, Rest In Peace), so you have a transformative sideboard to combat decks with robust graveyard hate. The strategy is to add the entire sideboard by cutting Hedron Alignment, Treasure Cruise, Otherworldly Gaze, and Dig Through Time (leave 1 copy).

When the deck is transformed, Disinformation Campaign turns your bounce spells into hard removal against hellbent opponents. The bounce can also be used to save your creatures. If you get Enhanced Surveillance down ahead of GY hate, you can surveil the way you'd normally scry and then crack Surveillance in response to hate. If you don't get it down in time, then it can still do a Sensei's Divining Top impression.

If GY hate doesn't seem to be a factor, board in Thoughtbound Phantasm in place of Sabotage against aggro, and Disinformation Campaign + black mana in place of bounce against creatureless decks.

> Concept

Originally imagined as a casual concept deck that used free pitch spells (Disrupting Shoal, Foil, Snapback) to maneuver Hedron Alignment into the required zones, fueling them with cheap card draw that ramps up in effectiveness over the course of the game (Accumulated Knowledge, Take Inventory, Frantic Inventory) and supplementing both with more alt-cost spells (Gush, Daze) and walls (Wall of Runes, Aegis Turtle, Hard Evidence).

It eventually shifted to the current decklist after I realized that I needed more frontloaded card draw, and the delve draw spells serve that purpose very effectively while also providing a way to move Hedrons between zones. The controlled mill of surveil provided an ideal way of filling the grave for delve without accidentally milling too many Hedrons.