While this would be nice to keep prices down, realistically, its far too early to tell
Its a way to buff your creatures and defend them at the same time
Do note that in a casual game, not only does the four copy limit not apply to Legion Angel (except within your deck, as normal) and nor are there any rules as to where the copy outside of the game comes from meaning you can just pull it from your personal collection of cards, as long as you have them with you), in a Tournament there are restrictions on how Legion Angel works
In time, either deck may prove to be great for competitive play, but right now, I'm not convinced either are as competitively viable as Rise of the Floodborn 's Amethyst/Steel deck , which is arguably still the most powerful Starter Deck to date
Synergy is not required - just brute strength
Mirrodin Besieged Bonehoard Flayer Husk Skin Wing Living weapon was the first named mechanic where tokens were a core part of the mechanic