What is Vhagar good for in Dragonfire, and when should you use it?

Vhagar is a Legendary Warrior (Instinct 63), a tank built for Alliance War — situational, and weak early.

Its Order, Fiery Bonds: each round (25% chance, 50% if the target is burning) it Taunts 3 enemies; on even rounds it deals +120% physical damage to one enemy. Its habits make it very hard to kill: Ancestral Shield (−12% physical and tactical damage taken) and Skyward Titan.

Use: it's a wall for long fights, especially paired with a dragon that applies Burn, since the taunt then jumps to 50%. Early on its investment-to-return ratio is poor — keep your gold Cores for Syrax, Caraxes and Crimson first. Green affinity for Shields and Archers.