While similar to Titanforged, Greeeds are basically manifestations of desire with their bodies formed from coin-like cell medals, their bodies being completely maintained by core medals. As long as one core medal is intact, Eiji can be resurrected again... Not sure if absorption would work on those (or if so, how long it'd take because of the sheer number of cell medals in one Greeed's body) but yeah.
For now, I'll just focus on the part where OOO tries not to get eaten.
His base Tatoba form isn't really anything special. Sure he can jump high and has enhanced senses but that's not much to work with. However, his Medajaribur sword is something else. On its own, it's just a normal sword but inserting three cell medals into it allows OOO to use the OOO Bash attack, which slices through the target apart together with the fabric of reality, destroying them when reality is restored back in place. Yeah, if Galakrond survives this slash (which cuts and ignores distance, so you'll get hit no matter how far you are), he'd be immune to it afterwards but with one well-calculated horizontal slice beforehand, he might be able to slice the dragon perfectly in half before he gets to adapt that slice. This weapon can be used by every single combo he uses.
Another similar weapon all combos can use is the medagabryu, which has void manipulation due to being able to damage and destroy core medals. Core medals cannot be damaged due to being manifestations of desire, and since the purple core medals (the ones where medagabryu comes from) are the complete lack of desire, it is the only one that can cause such an effect on the other core medals. While this one would be easier to be adapted by the dragon since it always has void manip from the start, the axe itself is very damaging regardless of core medal shenanigans. It also has a ranged gun form where it shoots out energy incorporating void manip.
As for his complete combos:
- Gatakiriba allows him to spawn a huge amount of clones as much as Naruto can, if not even higher. Unlike Naruto's clones, they have the same durabilities as the original body AND each clone can change into random combos and even other complete combos (which he does more in character). Fighting against a dragon bigger than the size of a bloody mountain, he's bound to use this combo to spam clones. He would also be able to amp his arm blades to do more damage, the blades themselves don't have any hax.
- Latorartar amps his speed, allowing him to outspeed and outrun Galakrond just by utilising the cheetah legs. How high of a temperature can the dragon handle? Because Latorartar has heat manipulation that's hot enough to vaporize large bodies of water.
- Sagohzo can trap Galakrond in the ground with Gravity and Earth Manip, though I'm unsure if it would work due to that abysmal Class Y LS coming from the dragon in comparison to OOO's Class T.
- Shauta just shoots water and can liquefy his body.
- Tajador can shoot fire via his Taja Spinner and energy projectiles that can home in on his opponents and negate their regeneration. This is one of the two full combos that give him flight. His legs have Dura Neg, which will be used in his Rider Kick finishers and whatnot.
- Putotyra can fly like the previous combo and can amp his power. Not to mention his shoulder horns can stretch to damage the dragon from afar.
EDIT: I forgor the difference in intelligence, I think that would also help Eiji in this fight pretty well.
