So. If you are fire, you would probably need to use fire resist gear. I had a total of 76% fire resist from bazaar before even attempting to try this. Make sure to have high fire resist, above 20% damage, and a tiny amount of crit. This is what I did, and I ended up having over 2600 hp when I finished. Enjoy!
Round 1: Blade Round 2: Blade Round 3: Heal(Peferablly satyr, but I made do with pixie :D) Round 4: Mass Convert Round 5: Feint/Mass Feint Round 6: Feint(if already done heal) Round 7: Heal Round 8: Fire Dragon Round 9: Heal Round 10: Done. If not, continue: Round 10: Blade Round 11: Blade Round 12: Heal Round 13: Feint Round 14: Convert Round 15: Amplify Round 16: Efreet Round 17: YAY I GOT SHARPENED BLADE!!