We collaborated with him to add a cycle of modal instant and sorcery spells, where one side was basically "pay attention to Peter's life" and the other was "do the heroic thing as Spider-Man." Two of those made it into the final set as civilian and hero moments, and a few others moved away from that specific flavor, while retaining their modal card shapes
Though it doesnt like lands in the traditional way
Finality is a quality sweeper when needed, which is a luxury
When a player warps a spell, they still cast it for a reduced cost, but the card goes on the stack and resolves if it isnt countered
Then you think about the fact that youd probably rather play Swords to Plowshares , Abrupt Decay , Assassins Trophy , Vindicate , Anguished Unmaking , etc