You don't need to be a druid to "bypass" the Ring of Blades.
Note the image:
If you stand on the outside edge of this pillar (or any "equilivant" pillar around the edge) you will still get credit for the quest and take no damage. Basically... any pillar that only one panda crosses will count. If two pandas "reach" the same pillar one will hit you. (Not sure why... just does). So....
- Pick a pillar that only one panda crosses.
- Stand on the outside if it.
- ????
- Profit.
An easy way to get on said pillar is simply to dismount over it while the panda is away from it. Hope this helps.