Dodge him, no use trying to block his attacks at level 1. You could also try two-handing your scimitar and apply turpentine, or make a long sword or battle axe (+10 or dragon). If you need more ephemereal eye stones you can kill saint urbain and farm the respawning black phantom in the pit urbain was originally trapped in.
Keep allant at a medium distance. Dodge his ranged wind attacks by running or rolling to either side. When he charges up his aoe attack, run in for a heavy hit, then quickly retreat out of range. Roll through his long range rush attack. Dodge or avoid his combos. Deal chip damage after he's done attacking. He only has one surprise attack that should catch you off guard, a fast medium range rush without any telltale wind-up.