The Caves of Androzani
The genuinely unusual move here is stun counters wielded offensively: the "skip your next untap" mechanic, normally a defanging effect, deployed as a two-turn lockdown on up to two tapped attackers or blockers. Chapter I sets that up, and chapters II and III are where the Saga shows its trick. They let you place an additional counter of a kind already sitting on any non-Saga permanent, so the stun counters from chapter I compound into a longer freeze, but so does anything else the board happens to be carrying: +1/+1 counters, loyalty on a planeswalker, charge counters on an artifact. That flexibility is the design's whole personality, and it is entirely parasitic on counters already in play; against a board with nothing to amplify, chapters II and III just tick the Saga toward its finale while doing nothing. The finale is a tutor keyed to the Doctor creature type specifically, which quietly names the deck it was built for: one stocked with legendary Doctors to fetch. Read as a single arc, it stuns two threats, spends two turns fattening the counters chapter I created, then closes by finding the payoff. The counter-amplification clause is the reusable piece of design worth remembering: a white effect that scales off whatever counters the board is running rather than wiping them, which is a rarer shape in the color than removal-by-subtraction.
