It's rather ironic because the Flip-based "Worm" is actually a full fledged archetype, while the Mill-based "Worm" is just a series, and yet, the Mill-based one is the much better deck.
Trick Has Game
Worms may be used for deck thinning, that is all they're trying to say. Especially the Wom that lets you special summon from the graveyard by their flip effect. Helpful not to lose life point damage(except for piercing). I used Worms to go all the way up to Gold 5 and then used Horus on up to go into Platinum.