Tarmiel is a great defense support unit that takes the hits for your other units and makes sure that your enemies units don't fill up their ultimate gauge and his ultimate partially heals allies. His grace also heals allies or himself during damage and his unique weakens enemies defenses. @Dessi2412

6 piece defense gear, also defense sub-stat whenever possible.

Don't give him UR gear, even if you can afford it. Save those for GFighter Diane, since she'll be so good with a Tarmiel link once The One drops

She should also have 6 piece defense