Equip both the Offering and the Genji Glove and your character will attack 8 times, 4 with each hand. Each hit is weaker than a normal attack.
Similar to the above, you can equip the Offering and the ThiefGlove to Locke and then when he uses the CAPTURE command he'll attempt to steal 4 times.
You can have Locke steal from the creatures on the Solitary Island. Of course you have to do it before they self destruct. The Peepers have Elixirs and the EarthGuards have Megalixirs
You can have Locke still from the Aquilas in the Phoenix cave and you may get an Economizer.
In the forest shaped like a dragon's head to the north of the Veldt you may run into Brachosaur. They leave Economizers once in a while when you beat them. This forest is also a good spot to raise levels (especially with the experience egg).
Intangirs and Flans have Magicite that Locke can steal.
Equip Umaro with the Gauntlet relic to raise both his Bat.Pwr and his Defense.
Once Locke has the Thief Glove have him attempt to Capture from everything. Lots of times he'll just steal stuff like Tonics and Potions, but other times he'll steal stuff like Elixirs, Magicites, and Relics.
Any undead monster can be killed instantly with a Revivify, a Fenix Down or a Life spell.
Cast DOOM on a party member wearing the Relic Ring to heal that member's HPS to their MAX.
You can defrost a frozen party member with a FIRE spell.
Having a different lead character when using a tent will change the tent's color and the banner or symbol on the center pole.
Cast Vanish on an enemy and then cast either X-Zone or Doom on that enemy for an instant defeat (this even works on some of the bosses).
Equip both the Ragnarok Esper and the Paladin Shld to learn Ultima twice as fast as normal (Ultima * 2).
Use relics that normally prevent a status ailment to cure them. (i.e. equip an Amulet which prevent poison to cure a poisoned party member).
Equip the Cure Ring to counteract the effects of the Thornlet.
Equip the Ribbon to counteract the effects of the Cursed Shld. (This is a must to uncurse it anyways.)
Equip Gau with the Merit Award to make the attacks of his rages stronger.
Back Row Attackers: The special attacks of Sabin, Cyan, Shadow, Celes, Mog, Banon, Strago, Edgar, Leo, Setzer, and MagiTek Armor all do the same damage from the back row as they do from the front. Gau and Relm can sometimes get the same damage from the back, depending on what command they are trying to copy.
Multi Mimic: With Gogo in your party, have someone use and Esper, cast a spell, or use an item. Now skip everyone and have Gogo Mimic over and over. This will allow him (or her) to use the Esper over and over, use the spell without any MP cost, or use the item without losing any from your inventory. This is especially useful with Ragnarok (by Mimicing over and over you can Ragnarok the entire enemy party).
Super Warrior Setzer 1: Equip Setzer with the Offering, a Black Belt, the Paladin Shld, and the Fixed Dice, plus the best helmet and body armor he can wear. Now put him in the back row.
Super Warrior Setzer 2: Equip Setzer with the Offering, a Genji Glove, the Fixed Dice, and Doom Darts, plus a helmet and body armor. Put in the back row.
Kappa the Imp: Equip the Imp Halberd, the TortoiseShld, Imp's Armor, and Titanium to a character. Rename him/her Kappa. Kappa the Imp is now a member of your party and it'll be a powerful addition.
8 Magic Attacks Per Round: Equip every one with Wall Rings and one person with the Gem Box. Now have the person with the Gem Box cast two spells at your party. The spells will bounce off your party and hit the enemies. Two spells * Four characters = 8 magic attacks.
99 Levels in Only Days: Before getting on the raft at Lete River (in the Returner's Hideout) go to CONFIG and make sure your cursor is set up for MEMORY. Once on the river go to the 1st save spot. Save your game and then go on until you're offered a choice of either UP or LEFT. Choose UP and follow the loop around, fighting as usual. When fighting use the following attack sequence:
Terra = fight
If you have a controller with autofire or rapid-fire, set it so the 'A' button is pressed over and over (you may need to use a rubberband or something to hold down the button. Now leave the game alone for a long time (come back once in a while to make sure you didn't die or something). After a couple days you'll be at level 99. NOTE: I don't recommend leaving your SNES on for a couple days straight. It probably isn't good for the machine or the game pak.
To gain MPS and Gold quickly, go to the desert near Maranda in the World of Ruin and fight the Cactrots and Hoovers. -To go through battles without much damage, equip your party members with Dragon Horns and/or Dragoo Boots. You'll be in the air so much the monsters won't have a chance to hit you.