Origin of Spider-Man
The Saga template is a natural fit for an origin story, and this one maps the three chapters of the arc onto three escalating combat effects: a body arrives, the body grows into something legendary, and the body swings for lethal. What makes the sequencing interesting is that chapters II and III both target a creature you control rather than the token from chapter I, so the payoff is deliberately unmoored from the Spider it makes. You are free to point the +1/+1 counter and the double strike wherever your best attacker already sits, and the token is just insurance against having nothing on chapter II. The middle chapter's type-changing rider (turning the target into a legendary Spider Hero) is mostly flavor scaffolding, but it does interact with anything that cares about legendary permanents or the Spider type, which is the kind of hook these crossover designs tuck in for the tribal builders. The real tension is the clock: three turns to resolve, sacrifice after III, and the strongest chapter is the last one. That back-loading is the cost of the rate. A two-mana enchantment that eventually hands a creature double strike is cheap, but you pay for it in time and in telegraphing exactly which turn the alpha strike is coming.
