|This build is for players who wish to use Zelgius right away without having to worry about elusive skills. Thankfully, Zelgius already has a pretty great natural skillset. One can just give him an Assist and a Seal and call it a day while using all of his natural skills.
Weapon: Alondite is his weapon of choice, which lets him counterattack against almost any foe, regardless of distance. Mages and most archers will have to think twice before engaging against Zelgius.
Assist: Swap or Pivot work as Zelgius's Assists. Either one will work, as they do the job of helping Zelgius move around, so just use whichever is preferred.
Special: Black Luna is Zelgius's Special. It's all he really needs, as it can pierce through most of an opponent's Def, allowing Zelgius to do considerable damage to many opponents.
A Passive: Fierce Stance 3 is a solid choice for Zelgius's A skill, as it grants him an offensive boost when he's attacked, letting him deliver a more powerful counterattack to his assailant.
B Passive: Warp Powder is an interesting option for Zelgius's B skill, and it is exclusive to him. This lets him warp to any adjacent space of any ally within two spaces as long as his HP is high enough. This improves his mobility greatly, letting him reach his foes more easily. Should the player feel like Zelgius's combat performance should be improved instead, then Quick Riposte 2 is a great choice for him, letting him perform a follow up attack if he's attacked above 80% HP.
C Passive: Panic Ploy 3 is a decent option for Zelgius's C skill, as it can help deter enemies that rely on stat buffs to win their battles. Should the player get a Zelgius with an -HP bane or simply feel like this is not necessary, then this skill slot is flexible, open to be anything else that the player needs. Ward Armor is a good, fairly easy to obtain option should Zelgius be on an armor team. He'd be able to bolster their defensive bulk this way.
Sacred Seal: Armored Boots is an option Zelgius's Seal. With Warp Powder, he'll have excellent mobility. However, both skills have HP thresholds, and should mobility not be a worry then this skill slot is flexible, open to be whatever else the player needs depending on preference and team composition. Quick Riposte 3, Close Def 3, and Distant Def 3 are all excellent options as well to help improve Zelgius's enemy phase presence.