6 really isn't that bad. Try "shotgunning," using many small orbs all on the same side of you to kill a bigger orb in 1 shot, then picking up the resultant little orbs from that and firing at another bigger orb. Also don't be afraid of losing some health early on to recover your few small orbs (saving time in the process). Doing so, I was able to pass it in only a few tries.
Winged shoes – +50 speed (should make it so that your enemy gets very few turns), 1 battle per day
Ninja star – 50 dam, 1 use per day
Pistol – 80 dam, 1 use per day
Deadly Nightshade – 40 dam, 1 use per day
Blowpipe – 30 dam, 1 use per day
Cannon – 100 dam, 1 use per day
Golden Fleas – Heals you fully, 1 use per day
4 Leaf Clover – next 2 atack from you hit, and next 2 from enemy miss, 1 use per day
Healing potion - +50 health, i ues per day
Holy Grail – halves the damage from the enemy for the rest of the battle, one use per day
Boomerang – 30 dam, 1 use per day
Voodoo Doll – doubles the damage to an enemy for 3 turns
Antique clock – gives 3 attacks in a row, 1 use per day
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