Les cinq cartes Kytheon, Hero of Akros / Gideon, Battle-Forged, Jace, Vryn's Prodigy / Jace, Telepath Unbound, Liliana, Heretical Healer / Liliana, Defiant Necromancer, Chandra, Fire of Kaladesh / Chandra, Roaring Flame et Nissa, Vastwood Seer / Nissa, Sage Animist, de l'édition Magic Origins, forment un cycle de créatures légendaires pouvant chacune se transformer en planeswalker, ce qui matérialise l'activation de son étincelle.

Source 1 (Spark Depths - "First would be a legendary creature cycle representing each of the five characters before their spark ignites. Then we would have a second cycle of the same characters, but this time as Planeswalkers. This would represent them after their spark ignited. [...] What if the spark was a transformation from one state, the legendary creature, into the second, the Planeswalker? [...] What if the transformation was the transform mechanic and the two different cycles were on the same card—the legendary creature was on the front and the Planeswalker on the back?") - Source 2 (Design five transforming Planeswalkers - "The design team had figured out how to do double-faced Planeswalkers with the pre-igniting side being a legendary creature and the transformed side being a Planeswalker. In one cycle, they had captured the essence of the set, displaying the moment each Planeswalker's spark ignited—where each of our five heroes became a Planeswalker. [...] The legendary creature would have some ability that was useful unto itself, but helped push toward a condition that would allow the creature to transform into a Planeswalker. The Planeswalker abilities then played into the themes that had been introduced by the legendary creature.")