End game you will use shield oath, taking your damage production down to a hilt. Spirits Within every 30 sec, do not wait for HP (70-100% is normal). If HP is a big deal, learn to cure yourself.

COVER! Cover your support tank. Let him know you are in a fight to keep hate with him. Let him know you think he's good, but you will never give up. Even if you are better than him, give him the illusion he is the best.