How do I beat a big full target in Dragonfire?

A full target does not fall to a single army. The combat data shows it: over 10 rounds, one army melts a full defender by around 1,000-2,000 troops per round but never reaches 0 — the result is a stalemate (both sides survive, no loot).

The method that works:

• Send several waves at the same target. The defender never heals: damage accumulates from one wave to the next.
• Once the target is softened (about 2,000 troops or below), your army finishes it in 1-2 rounds.
• Or have an ally soften it first, then you clean up.

The comp for those waves: robust "long" armies (strong Center aura + single damage type + maxed troops). And that's exactly why you want your 5 slots full: to chain assaults with no pause.