Not all 1-drops in green are pointy-eared mana creators
Ironically, for a mechanic that seems so suited to the Izzet (Cerebral Vortex, Ral Zarek, the actually Izzet Guild doesn't have a single Legendary creature that cares about coin flips
One of the coolest interactions you can do is with Chalice of the Void (where X is different from 1), casting Veil and making your spells uncounterable, blanking the Chalice
It did introduce Derevi, Empyrial Tactician, which has gone on to become a staple stax commander
This is especially spicy if youre playing something like Firesong and Sunspeaker, because then youre not only wiping the board, but also gaining a lot of life
Sweet-Gum Recluse Flash and cascade are such a disgusting combination (complimentary)