For instance: if you had three Clues, enough mana, and all the relevant cards exiled under Lazav, you could cast Cackling Counterpart targeting Lazav, hold priority before it resolves, sacrifice a Clue to trigger Lazav to transform him into Marionette Master, hold priority again, sacrifice another Clue to trigger Lazav to transform into Octavia, Living Thesis, hold priority once more, cast Armor of Shadows, let everything resolve, then sacrifice a final Clue
But even without the fig-leaf of there being some unique mechanical twist to this archetype, its still a very fun and interesting deck to actually play
All in all, the foil slot in a War of the Spark box is worth just under $14, which is a couple of dollars more than normal, mostly because of the uncommon planeswalkers
1x Long card storage box