My Weld Instance is opposite maybe?

So Im making an attack animation, almost. I want a slash effect to appear before the player when they attack.
First I cloned a part the set that parts position and CFrame but to do that server side it didn’t work as expected. The position of the player was extremely delayed… so the attack was completely off the character. Then I had the brilliant idea to use a weld instead.

So I tried: Cloning effect part. Instancing new Weld. Setting Part0 to player.character.humanoidrootpart. Setting Part1 to the cloned effect. But… Heres the problem…

It is like the player weld itself to the effect instead of the effect welding itself to the player. The player just teleports to the effect.

So… to fix it for those who are wondering just set the piece to massless. This will fix it!