The Meatball

Tap the button and it shoots out and snaps back. Hold it and you spin the head in a circle around you, damaging anything it passes through, and that spin mode is what makes early flails worth carrying. It covers above and behind you without turning around, which no starter sword can do.

That makes it strong against the first bosses specifically. Against the Eye and the worm you spend most of the fight running, and a weapon that keeps hitting while you move is worth more than one that needs you to stop and face the right way.

This is the Crimson version. Corruption worlds get the Ball O' Hurt instead and it plays identically, so you are not missing anything either way.

Naming quirk: modifiers get bolted onto the front of the The, so you end up carrying something called Godly The Meatball and there is nothing you can do about it.