[Discussion] Why Gaara didn't use sand...

[-ahhimane-]

...when Madara was getting stomped by Bijuu tails?
Gaara could have had stopped his movements and let the Bijuus chop Madara to death. Afterall, Gaara's sand was still inside Madara, right?

 

[Kαmi]

Maybe Madara bled it out, he did lose lose a lot of blood. Truthfully, that should have stabbed him with their claws or TBB his ass, this whole problem would just end up water under the bridge..

 

[LUMOS ULTIMATUM]

Probably because the healing allows it to get rid of parasites inside his body. The sand probably got desintegrated with time. Remember that it is an advanced healing ninjutsu.

 

[Anonn]

I have one word for you: '' Plot ''

 

[HNIC]

Plot!!
Garra could have used sand coffin effortlessly at that point