I would call Deo-D a Lead, which are common for every playstyle, rather than a supporter. Fast hazards can be found on suicide leads too (common on HO in BW1, BW2 has lowered their usage though) Examples of such are SashSR Azelf, SashMamo, SashAerodactyl, etc.
Supporters to me rhymes with Teammates. Your teammates job are to support the team in anyway they can (late game sweeping, revenge killing, hazard stacking, gluing, etc.). The type of support varies whether you play offense or defense though, so instead of using Bronzong for SR (which walls and doesn't offer much offense; UNLESS your using TR?!?) you would use SashLead Terrakion or Offensive Jirachi depending on what your team needs (steel resist vs. terrakions utility).
Hope I helped!