Healara, also known as HEL2 in the NES release and Heal2 in the Final Fantasy Origins release, is a level 5 White Magic spell. The spell restores a moderate amount of HP to all allies. In the NES and Origins releases, it restores between 24 and 48 HP, while in subsequent releases it restores HP depending on the caster's Intelligence.
The spell can be bought at Melmond and can be learned by the White Mage and White Wizard Job classes. In the GBA/PSP/iOS releases it costs 25 MP to cast. It can also be cast by using the Rune Staff as an item.
The spell is bugged in the NES version; it works outside of battle as designed, but works like Hel3 in battle.
Healara is the ability used when a character uses the Recovery Rod as an item, which restores some HP to all party members.