That's a great reason to choose red as your first color
My final advice would be: use the basic frame structure as a constraint (limitation breeds creativity, Mark Rosewater says), and if needed work from there to create new details that are really meaningful for the game, and be more careful not to create more noise
While this allows your evasive creatures to reliably draw you additional spells to cast each turn, this effect strongly incentivizes your opponents to attack each other in the name of drawing additional cards
There is a little bit of risk here: with Gandalf as your commander, you can choose to put Gandalf in the command zone rather than your library, but once you choose to let Gandalf go to the top of your library, if he somehow gets shuffled into the deck, youre at the whims of randomness as to whether youll see your commander again
Since Uril already has built-in hexproof and gets bigger with every aura attached, this one not only protects it but also helps it hit even harderand in the air, no less
Valgavoth whispered into Marinas ear until he was all she could hear