Not May discs but from a perspective of game changers in order.
1. Super Puppy/Puppy disc set rules for PDGA minimum Diameter
2. is Aviar or Aero your pic people for what was first beveled edge disc mold in numbers
3. Classic Roc/XD for being some of molds made pushing past a standard driver. Really similar discs so I lumped both together
4. Magnet for finding ways around a Beveled edged patent Dave D had on Putters and not paying for patent
5. Stingray as was one of the first approved midrange discs
6 Valkyrie or Leopard whichever Ushered in modern driver era first
7. Zone first disc promoted/used as strictly an OS approach disc.
8. first Vibram Disc A clone of the Wizard PDGA rules no longer had Plastic as only disc material once rubber was deemed legal so Steady rubber like plastic was not in a grey area of rules.
9. Destroyer simply look at brands as everyone of he brand with more of a lineup has a Destroyer like disc, even Lightning owner had made a Destroyer clone in a Pro like plastic about 5 years before owner died
10. Aerobe Epic made PDGA come up for rules for Max rim during Driver wars of 2000's among top 2--3 brands
.
Honerable mentions, 6 of them.
Roc, one of best selling discs of all time besides Aviar due to Ken Climo, Gator a was about only OS mainly approach disc for years
Gumput or Blowfly/II in modern plastic this case mainly plastic
Wizard for sales and how close you could get to an Aviar during Dave Dunpace his patent era of Beveled edged putter discs without paying for use on Dave D his patent.
Comet a disc that stared a claim by Dave D as a copy Discraft owner did on a Stingray with bead, change was adding a bead for better stability in wind but since Dave D never patented his rim of a Stingray using his old patent.
Oh let's not forget 10 Meter Brick old brittle or newer floppy version both no longer made. Disc set rules on how a discs top flight plate has to be becuse the middle was so thick. PDGA made rules so nobody could have an even thicker center on a disc and so nobody else could do what Quest AT did on having as low a rim heigh on a disc as Quest AT had in a lid design