You can tutor powerful enchantment creatures, such as the Theros gods, or enchantment-based removal
There are also cards that look almost identical to magecraft, like Young Pyromancer
At one mana, this 1/1 artifact Human Soldier draws you card - if your opponents doesn't pay X equal to Esper Sentinel's power
Shadow clearly has a ton of potential, and I think it goes beyond regular, casual Commander
Archaeomancer's Map is Burgeoning-lite that draws two lands on ETB, Its highly effective as a white card, since white doesnt have as many options for ramp effects
Getting to cast instants and sorceriesones that were only intended to be cast oncea second time is quite powerful