It locks out spells during combat, and it lets you cash in damage post-combat for colorless mana when it flips into Megatron, Destructive Force, a vehicle that throws artifacts at enemy creatures, which is a nice twist for aristocrats decks
Lifegain Matters Thanks to the fact that you can sometimes just sacrifice Food for life, I added just a dash of Witherbloom lifegain-matters from last year with Veinwitch Coven and Sproutback Trudge
Those are just a few of the most explosive options
Honorable Mention: Stoneforge Mystic Not that many creatures ever get banned, let alone in multiple formats, so its kind of crazy to me that Stoneforge Mystic doesnt even make the Top 10, anymore
Given how cheap it is, I think the upside comes up fairly often, and this should be a very solid removal spell for green
Blade of Selves and Helm of the Host are standouts