Red Dragon Boss Guide
Red Dragon is found in Boletarian Palace 1-1 and 1-2, though it can only be killed in the latter area.
This strategy is best used while equipped with the Dragonbone Smasher, Metacleaver, or a very large sword, large axe, or large hammer to prevent yourself from being knocked down.
Position yourself where the bridge begins and you will see some burnt corpses to your right. Face the direction of the second watchtower while next to the bridge wall on your right and get ready. When the Red Dragon flies by, attack its tail using your weapon’s power attack which prevents you from being knocked down because of the hyper armor activated during the move. Do not lock on to him as aiming for his tail manually gives you better chances to hit him.
Climb the first watchtower on the bridge and make your way up while killing the guards. The vantage point here allows you to snipe the Red Dragon with arrows or magic. Note that aiming manually is also recommended as the dragon constantly moves in the air and will evade most projectiles fired straight at him. Do not lock on and anticipate his flight path to land shots on him.
You can cast Poison Cloud on the Red Dragon when it flies through low enough at the first causeway. This will obviously take time and you may need to use the spell up to four times to kill the boss.