Summon: Shiva

The Saga frame turns a summoned creature into a locking mechanism that pays itself off on the way out. The first two chapters do the tempo work: tapping down an opposing creature and pinning a stun counter on it, so the target sits idle for a turn beyond the tap itself. Repeated across two triggers, that quietly builds a board of tapped, frozen bodies on the opponent's side. Then the final chapter cashes the setup: a card drawn for every tapped creature your opponents control, which is precisely the position the first two chapters have been engineering. That is the design economy worth noting. Most Sagas front-load a splashy first chapter and let the tail sputter; this one runs backward, using the early chapters to manufacture the exact board state the payoff rewards. The 4/5 body matters too, because unlike a typical Saga the creature persists through all three chapters before the sacrifice clause fires, meaning the stun-lock and the draw both happen while a real blocker sits on the table. The tension is timing: the lore counters advance on your draw step whether you want them to or not, so the window to maximize the Diamond Dust draw is fixed, not chosen. You are not looking for the biggest turn; you are steering the two turns before chapter three so the tapped-creature count peaks exactly when the card is drawn.