There are only two Iconic cards in a set, and this time around, Disneys core couple introduces the concept
This redundancy in low level synergy payoff makes it worthwhile to really push the landfall side of the deck and even go above and beyond the ideal double hit
Sevinne, the Chronoclasm Sevinne, the Chronoclasm works well because there are so many synergies surrounding it, like Secrets of the Dead and Torrential Gearhulk
And that hasnt ended, we just flavor stuff after planeswalkers (Jace's Erasure, Liliana's Specter, Chandra's Ignition) or still after legendary creatures (Ezuri's Predation, Daxos's Torment, Kalemne's Captain, Gisa's Bidding, Geralf's Masterpiece, Oona's Grace, etc)