help with final fantasy X?

Question

well in the battle against seymour i beat the two guards than get up to anima then barely beat him...but i can beat the last part against seymour

Answer 1

You'll need to have Yuna, Tidus and Auron during the last portion of the battle.

First: Have Rikku Steal potion from both guards
+Have tidus and auron talk to Seymour (and Yuna if you can to get power/magic boosts)
+After beating guards, use Shiva and other summons aganist anima.

Third: Have Yuna cast Nulblaze, Nultide etc. on all characters. Make sure its Yuna, tidus and Auron. While Yuna casts spells to protect everyone from maigc attacks by seymour, have Tidus and Auron attack.