If you're standing back, You're better off investing in a Ninjutsu set. At least Ninjutsu stacks to 99. plus, Shuriken's "Sweet Spot" is Melee range, SO they actually expected you to be meleeing when you threw shuriken.

Kinda funny in a "They have a fundamentally flawed view on their own game" sort of way.

P.S: Relic Shuriken was obviously not intended to be shown as a possible item, But a comparison to what they think the DMG/DEL of the suggested Shuriken would be more related too. Honestly, Wish said it the best anyone could, SHuriken are an entirely flawed concept with no real use at all. I like Spanks idea of Sange too.