Summon: Valefor

The Saga-creature template does something a flat bounce-and-tap enchantment could not: it front-loads the disruption and back-loads the grind. Chapter I fires the moment the permanent lands, forcing each opponent to bounce their single largest creature by mana value, which is a targeted attack on commanders, ramp payoffs, and reanimation prizes rather than a symmetric board sweep. Then, because the same object is a 5/4 flier, the following three draw steps each tap a creature and jail it under a stun counter while the body pressures life totals in the air. That layering is the point. Bounce effects usually buy a single turn; stun counters usually need a separate card to deliver; a flying beater usually does not come attached to either. Folding all three onto one permanent that reads its own clock via lore counters lets the card function as a tempo spell, a repeatable soft-lock on a key blocker, and a threat, in that order, before it sacrifices itself after the fourth chapter. The tension the designers had to manage is that a Saga cannot be answered the way an activated ability can: opponents see the entire four-turn script the instant it resolves, and the stun counters are chosen targets rather than a spread, so a threat with hexproof or protection from blue can sidestep the tap-and-stun back half entirely. The result is a disruption engine with a fixed shelf life, a fairer way to sell repeatable tempo than an untimed permanent would be.