Which all-breeds stat should I prioritize: Strength, Intelligence, Instinct or Initiative?

The 4 all-breeds nodes are each worth +2%/level (max +10%) — so the right order depends on your roster:

• Warrior roster (Physical) → Might of Valyria (Strength) first.
• Hunter roster (Fire) → Wisdom of Valyria (Intelligence).
• Sentinel roster (Tactical) → Conqueror's Instinct.
• In every case → First Flame (Initiative) is a good universal first pick: it helps stats and turn order.

General rule: identify the dominant breed among the 3 dragons in your formation, level its primary stat, and keep First Flame going alongside. Spreading all 4 evenly dilutes the effect — concentrate.