As one of my all-time favorite commanders, this legend from Champions of Kamigawa (2004) isnt strictly advantage, as your opponent gets the benefit first, but its very cool and look how it just wants to cuddle you
This particular precon focuses on vehicles, which might seem a little strange to promote as a starter deck, but it's how this precon is built around the card type that makes it worthy of this list
Its the deck I hand to anyone learning the game, because the plan is one sentence: make goblins, then make the goblins matter
With one or two in the deck, we can see this getting play
Some effects can grant a sorcery flash, which basically overrides the sorcery-speed restriction and lets you play it as if it were an instant