Osas are summoners. A strength Osa will need to focus on the summons that go best with earth: Gobballs. This build will focus on just that (be it very basic) to guide you on where to go if you're looking to be a summoning tank.
Unless in Gobball form, The Osamodas' characteristics do not affect those of their summons. When in Gobball form, the only stats that gets transferred are Strength, earth-type damage and neutral-type damage. Otherwise, their summons gain +1% Life and +1% to each of their stats per level of their summoner.
Most of your characteristics are going to be going into one of two places: Strength or Vitality.
- Strength Your primary direct attacks are going to be Crackler Punch and Fossil. Both of these are earth-type attacks and therefore both are going to benefit from higher Strength. In addition, any weapon you use that is earth or neutral-type will benefit from Strength as well. When in Gobball form, 50% of your Strength, earth-type damage, and neutral-type damage will also go to your summoned Gobballs.
- Vitality If you're going to be playing a tanky-type role and be up front-and-center you're going to need to stay alive. This is where vitality comes in. Depending on exactly how you play is going to affect how much you want to put here.
- Resistances Though technically not a stat you can put points into, having higher resistances is going to be vital for melee combat. They more you have, the better off you will be.
These are your earth spells and your main spells for this build. You want these maxed out ASAP.
|Animal Link||3||Animal Link allows to Osa to merge with one of his summons to gain buffs and debuffs depending on which summon he merged with. The Osa can also control all summons that match the form. Summons gain a percentage of Osa Intelligence, Strength or Agility depending on the form.|
|Fossil inflicts earth damage and reduces up to 3 mp on enemies. On allies it gives Vitality as well as Lock.|
|Gobball (summon)||9|| |
|Summons a Gobball (summon) which fights alongside you. Gobball inflicts neutral damage. Can be controlled while Osa is in the Gobball form. Summoning a Gobball blocks Osa from summoning a Tofu and Wyrmling on the same turn.|
|Black Gobball (summon)||31|| |
|Summons a Black Gobball (summon) which fights alongside you. Black Gobball inflicts Earth damage. Can be controlled while Ssa is in the Gobball form. Summoning a Gobball blocks Osa from summoning a Tofu and Wyrmling on the same turn.|
|Crackler Punch||54|| |
|Crackler Punch deals high earth damage in an AoE.|
Though your core spells will get you off the ground, you'll need to support your team of summons using a few buffs.
|Call to Order||13||Call of Order kills the targeted summon. It refunds the AP if its used on a Gobball, Tofu or Wyrmling|
Earth Air Fire/Healing
|Inflicts Earth/Air/Fire damage depending on which form the Osa is in. Gobball form attracts, Tofu form Repels and Wyrmling form heals allies.|
|Natural Defence||60||Natural Defense makes an allied summon become invulnerable for a turn. The summon dies the next turn.|
|Sacrificial Fire||70||Healing||Sacrifices an Osa summon to heal a % of the summons vitality in an AOE around the summon.|
|High-Energy Shot||90||Gives an Osa summon AP, MP, Vitality and % damage boost.|
|Symbiosa||100||Allows Osa to control an allied summon for 1 turn.|
Ideally, you want to max out your core spells first. Once you've got your core set, start on your Buff/Control spells. With exception of Call to Order, I'd suggest leveling them in the order that you get them. Call to order is only useful if you use it.
See the general Leveling guide.
Generally anything that is wear to earth/neutral is a good target. Even better if that target only has melee attacks. If you send in your Gobballs to tank the beast, then buff them up to keep them alive you should be fine.