Pursue the Past

Boros rarely gets to rummage, and never for free. Red's card selection is usually violent (dig by discarding first, wheel by throwing away your hand), while white pays in life or tempo for even a modest draw. This splits the difference: the two life is unconditional, the discard-then-draw is optional, and flashback means the selection comes twice from a single card. The discard clause is the hinge. Cast it with a full hand and it filters your worst card into two fresh ones; cast it holding something the graveyard wants and it becomes an enabler, seeding reanimation or delve or flashback fuel while replacing itself. Flashback exiles the second cast, so the rummage-then-rummage pattern is finite: you get the same spell twice and then it is gone, which stops the effect from becoming a grindy value engine and keeps it a two-cast dig rather than a loop. The discard is a "may" tied to the draw, so the card has a strict floor: gain two life, draw nothing, done. That mode matters when you have nothing you can afford to pitch but still want the two life and the flashback cast waiting to be spent from the graveyard. It is a small piece of engine plumbing dressed as a cantrip, and the second half of its life happens in the graveyard rather than the hand.