I wouldn't recommend either.

Archangel is there for its skills and leadership buff, not stats, leave it as it is as of now. Awaken him instead.

Wind Warbear is amazing for tank and dmg output but he is way too passive in battle.

Get somebody that could initiate a battle, or deal massive dmg to bring him to ur 1st 6 star.

So idea if u cannot afford a full nat4* team den u have to build a tea a round ur main
So u may wan to pick up ur main attacker and get some other mobs to support him

I now making Fire high elemental to go with fire vamp since high elemental leadership and skill will help vamp to get more speed attack and of course immunity to extend his survibility

At the same time I gonna change my roaq rune to violent focus,
Which rune u use for fire vamp?
I'm thinking running fatal blade which I have 6* speed 5* critical rate and 4* att%

I'm now try to awake my fire vamp still need 3 high essence
Looking forward for my team gonna look like
Fire High elemental (leader) fire vamp, fire pierret, roaq.

I now regard to make roaq 6*.... Feel like wanna drop him but the hardwork of 6*... Rugi la

And plenty of work under progress suppose to start to play fusion hex but end up getting fire vamp from crystals summon, so now I think priority is to make fire vamp 6*

Those who add the guild please comment ur ign here.. Suddenly I got 40 request and a lot Chinese name