You can only revive a dead or a dying art. When Warne came in 1992, Qadir, Mushtaq, Hirwani and Kumble were bowling various flavors of that art. Leg spin was alive and there was no need to revive it.
Diuretics are used to look good at TV shows
I played for 20 years in the Lankan team, I did not have any problems as a Tamil - Muralidaran