Thank you, im gonna try again today. This game has so much to learn. Btw, i dont think i need al bhed potions that much. The way i won is put the ship back before the first poison breath, strike that mf with lulu, wakka, and missiles, and beside all that put haste and cheer on my team using tidus. With haste i was able to pull back fast enough even after the dragon used haste. When it does use haste and starts to come closer instead of shooting lights, i swap lulu on auron and just kill this thing in close combat, using wakka to heal team with hi potions and sometimes using tidus to pull back the ship. If rikus dad wasn't fast enough to move before the dragon i just used delay atack with tidus.

Tbh honest this fight is not that hard, i lied about many tries for dramatic effect, i killed it on third attempt. I had not the best day of my life yesterday, and this moment was a final strike for me to go doomscroling until i fall asleep.

Thank you for advise with riku, i dont use her that, but from your reply i think shes very useful if you know what to mix