Healing Tip is the reason why I love teaming up with Azure Fang. My Midnight Blade's Anbu Special Tactic allows the whole field to heal themselves by 25% of their TAI damage they cause; and vice-verse Azure Fang Poison Tai team could both leech AND poison their enemies.

Post 2.0 I have tried a 3 people team up by Azure - Midnight - Scarlet, with Scarlet Blaze's Ninjutsu Urge to add even more healing to the team (15% of the Ninjutsu damage). Haven't tried the team in GNW yet, but it works quite well in TI/SA.