A · Fundamentals · §1
A midrange deck whose resource engine is its own units dying, and whose leader turns that into a clock.
Director Krennic, Amidst My Achievement reads: Action, exhaust and defeat a friendly unit, create a Credit token. That is the entire deck. A Credit is a resource, and a resource is what every other card in the game is waiting for, so a deck that can convert a one-cost body into a resource every single turn is playing a different curve from the one its opponent is on.
Feeding a unit to a leader is normally a real cost. Here it is not, because the cheap units are chosen so that their defeat is the payment. costs one and draws a card when defeated. costs two and does the same. costs one and heals two damage from your base. costs four and, when defeated, resources itself out of your discard pile: its death is literally a land drop.
So the leader ability is not a sacrifice outlet in the usual sense. It is a second resource per turn that also draws a card, or heals your base, or refunds the unit, depending on which body you point it at.
It is not an aggressive deck and it should not be played as one. Nothing here attacks well before round four, and the top end starts at seven and eight resources. Every game is a question of whether you survive to the deploy with a board still standing, which is why the guide spends as much time on when not to take the Credit as on how to take it.