Withstand Combo

Once More (コンボリーヴ, Conbo Rīvu^?, lit. "Combo Leave") is an ability available in Kingdom Hearts II, Kingdom Hearts II Final Mix, Kingdom Hearts 358/2 Days , Kingdom Hearts Birth by Sleep and Kingdom Hearts Re:coded. Once More ensures that the player will retain 1 HP after being attacked by a combo that would normally finish them off. However, if the player already has 1 HP, Once More will not save them from defeat. Another ability similar to Once More is Second Chance.

Acquiring

Dual-Wielding Roxas has "Once More" as a default ability.
Sora learns "Once More" at level 25 with the Dream Shield, level 28 with the Dream Rod, and level 47 with the Dream Sword.
Goofy learns "Once More" after defeating Oogie Boogie in Christmas Town.
Auron has "Once More" as a default ability.
Aladdin has "Once More" as a default ability.
Riku has "Once More" as a default ability.

Once More can be attached to a type B or type J Command recipe through Command Melding, either randomly or by applying a Wellspring Crystal.