Which dragon to raise first

Why does multi-wave attrition matter in Game of Thrones: Dragonfire?

Confirmed in combat: the defender does NOT heal between rounds or between waves. Whatever damage your first armies do stays for the ones that follow.

The strategic consequence: sending several armies in waves at the same target wears it down, and a weaker army can finish a defender that's already been softened — a fight has been won at a −7% disadvantage thanks to earlier attrition.

⚠️ It isn't an absolute rule: without that softening, the outcome comes down to the power gap, the auras, Initiative and the number of rounds. The −7% is still a real factor, just a small one.

For raising dragons: favour the ones that make you last — healers like Malachite, anti-heal like Seasmoke — to win the long exchanges.