In the category of Lava Death, the rules state:

"Die in lava. Can be done in every mode. Can be done in a party. Timer starts after freeing the cell and ends after death."

No where in these rules does it mention you can't use kits, though I was rejected for the reason of "Must Use Default Kit"

Almost everything is allowed in death runs. Fixed.

1. Penguin has said to me it’s not allowed for CATEGORY EXTENSIONS.
2. Check Twitter dms @MCEndercraft

It is allowed.

... So does that mean my run can be approved? @ReverseDmitry

I already approved it

There is no reason for it being denied as the former WR did use the exact same strat