Based on speed, co-ordination and devastating attacks, adventurers employing blitzdelve hit hard and move on instantly. Sowing panic among a dungeon’s defenders and causing doubt and confusion among its leaders they deny their enemies time to mount a meaningful, coordinated defence.
I have a plan, We rush in and slay them all!” How often has that been heard at your gaming table? But to be successful, adventurers must consider many more factors than simply how to get to the enemy quickest.
Charge! Hack! Maim! Kill! Sadly, for many adventuring groups this is pretty much the extent of their tactical planning. Such groups charge into the dungeon with little thought for tactics, planning or other considerations. Most such groups are doomed.
Things have not gone well. Once the clamour of battle has faded, the PCs lie among the bodies of the fallen. Slain by their enemies, who now pick over their corpses and loot their choicest treasures, the PCs are now nothing more than worm food.
TPKs rarely just happen. Normally, the party gets at least several rounds warning before things go horribly wrong. What should they do?