A fun team idea...

They are all available as 4* (Henry and Robin as 3*). I had a full TA raven team idea as well, but I think that it won't be as fun as it might sound.

Well one thing I do know is that Sophia is considered to be a better Triangle Raven Tome Adept than Henry on red due to her stat distribution, high in not 100% sure on the other colors. The real issue with this buildnis where you place what breaker andnin who since you have to build your team to deal with the meta and most raven mages have bad resistance stats, forcing them to reply on triangle adept to keep them alive in battle.

Positioning will also be your biggest concern and trying to properly bait against the cavalry blade tones will be the biggest obstacle you fae. Assuming you can build Boey to manage vs both blade olwen and deathblow Reinhardt, you will likely be fine against Leo and Cecilia as well but some fortify res buffs might be needed in some cases just to be safe

Cool idea. I run TA Raven on two mages but hadn't thought about an entire team. Ignoring mages who would cause a lot of trouble, it sounds like a surprising viable setup though Cancel Affinity would wreck the entire team.

A fun team idea indeed but the idea is actually : Rock-Paper-Scizor idea.

It might work wonders in some chain challenges but in arena, it might be hard to win 7 fights without a losse, since your units are only as strong as they fight the right colors.

You might be in trouble when you fight gimmicky team (like defensive teams of 3 or 4 green units, like I do).

And even if not, you will still rank pretty low in arena because of low BST, lost SP (Raven, TA, Breakers are all minimal SP costs).

Finally, just at the opposite of you, I'm underlooking TA skills, since they are just as good for you as they are for the ennemies. You get a bigger advantage but a stronger disadvantage too.

Of course if you can use it on a RavenTome user, then you get 2 advantages for 1 disavantage (that you may be loosing even without TA anyways) but the one thing people tend to forget is the last color !

In example, you are a GreenRaven TA user, so you beat Blue and Grey pretty easily, however, you lose harder against Red. But what about Green ? You've a breaker skill, most likely Green tomebreaker since it's more meta. But hey, it's meta, so "everyone" has a greentome breaker on his Green mage too !

Meaning you have no advantage over your color, BUT a disadvantage because your TA3 is useless against Mirror color, when the ennemy may have Fury or a blow skill, or whatever that gives him an edge.

That's why I don't like TA. Plus making the game a simple "rock-paper-scizor" is a bit lame imo.