Board Thread:Questions and Answers/@comment-26154471-20150720010901/@comment-10373903-20150722121504

Guardian is a great type for Griel

Griel is really good for auto battles as her (or its) LS grants status immunity, boosts BC drop rate and makes your squad beefier with the 30% HP boost.

When I auto battle through quests, I usually go for Griel lead with any Ares' Excelsior lead (usually Elza)

Then all your squad needs is a decent mitigator and 3 other units that suit your style.