Emerald WEAPON

Hp/Mp: 999.999/9999
Emerald is the toughest creature in the game. Its attacks can do around 6000 damage and he has one attack that can kill your party instantaneously (Air Tame Storm). Before you engage him, make sure youhave these materias installed:

- Knights of the Round (Minimal: level 3)

- Phoenix linked to Final Attack (level 3)

- Mime (2x)

- Big Guard or Time materia

- Mp Turbo linked to the Knights.

- Underwater materia

First of all, cast Haste or Big Guard on all allies. Emerald will try to kill you first so don't start the chain until he finished attacking you. Once its your turn, attack with Knights of the Round and let the others mime it. Thanks to the Mp Turbo, the Knights will do around 130.000 damage each time (Not the ones that are mimed). Emerald will retaliate from time to time with its Air Tame Storm, but Final Attack with Phoenix will revive you. Don't be afraid to use Megalixers and use Limit breaks only at the end of chains. You'll beat him eventually. Emerald will leave the Earth Harp which you can exchange for 3 Master materias. Go to the old man in Kalm and talk to him.