Mangetsu solos.
You do realize that water is not sands weakness and that gaara has 200m between them?
200m? That's pretty unfair.
Gaara doesn't need Shikaku.
I mean, as long as he avoids aerial Nuibari volleys...
Avoids? Gaara can fly and this hasnt shown the feats to even trouble gaara. Even if it could sand sphere eliminates any threat