User blog comment:Fieryno/I'm new - Unit of choice/@comment-26947994-20180407232757/@comment-26947994-20180408173725

It's honestly kinda your preference.

Elimo is a great healer and mitigator while providing many, many defensive buffs, but doesn't have an attack on her BB/SBB/UBB.

Ilm is one of the more offensive mitigators, providing stat buffs and extra dmage on his SBB. He's also really great for arena; I can't tell you how many times I've lost arena battles because of his Angel Idol buff.

Solos is one of the in-between mitigators, providing some damage on his BB/SBB but provides defensive buffs as well.

With your units right now, I'd recommend Solos, but it's all up to you.