The only meaningful difference is how many packs you open and whether those packs came from the same sealed case or from mixed inventory
Jokes apart, I think it's very strong and can be easily summoned by Courier+Archer+Sorcerer (Normal summon Courier, return it to your hand to summon Sorcerer, then you can summon both Courier and Archer and Synchro his monster
Unearth only as a sorcery.) If Mishra's Juggernaut can't attack for any reason (such as being tapped), then it doesn't attack
Its Commander, it's OK
Summary of (Potential) Issues: -You should place an OPT clause on all your monsters to prevent Clash abuse -Fix Problem with Dullahan, Dante, and Alucard somehow, if you don't know how, you can ask me, I'll figure something out
The green background contrasts Milotic's pastel colors perfectly, giving it a 3D-like appearance, almost jumping off the cardboard