Rechan said:
Dragons being a solo monster = when you fight a dragon you fight it alone.
That doesn't mean that there isn't anyone working for the Dragon, being their spies, a wizard who doesn't live with the dragon that sets up the wards, a pack of kobolds that live at the mouth of the dragon's cave, etc etc etc.
In other words, just because the dragon is the boss doesn't mean you won't encounter its minions earlier in the dungeon.
Dragon: "MINIONS! Adventurers have intruded my lair. Now go away and hide while I fight the adventurers alone."
Minions #1: "But dragon, I have arcane might with outmactches everything those adventurers have. You know that because I always have to cast scry spells for you as you are unable to do so. And Minion #2 who places all the wards around your lair so that you are not completely helpless against your enemies is a devout priest of the dark god. Together with our apprentices and Minion #3 who crafted all traps in your lair we could aid you in the combat.
Dragon: "NO! I am a solo monster. You aiding me in combat would be an unbalanced encounter. Therefor you must leave."
Minions #1: "Very well. (To other minions) Lets go and let this dragon be killed by those well prepared adventurers who all have protected themselves against his element. Its a good thing they don't know that we are the real boss encounter in this lair and not the dragon as together we are much stronger than him. That way we can surprise the adventurers. (To dragon). If you somehow manage to win the fight you are allowed to keep 30% of the loot. And if you die make sure that your corpse block the exit of the lair."
Dragon:" But we agreed on 50%!"
Minion #1: "Don't be silly. Without our magical powers you would be helpless. Or do you think that your little fire tricks would allow you to amass any form of wealth?You would spend your time with raiding caravans for meager profit and threaten small villages. And sooner or later a band of adventurers will enter your unprotected lair, if you even have a lair, and kill you in your sleep. You need us more than we need you."
Dragon:"Ok boss"
That is of course a bit overdramatized but it does capture the problem dragons have when they don't have magic. They are unable to do anything big except looking intimidating and terrorizing small villages. For all other things they need minions which provide the dragon with magical and other powers. And that means that in the end the minions are more dangerous than the dragon.
mhacdebhandia said:
Rituals, the same way wizards create magic items. Much more flavourful to do a ritual to create a barrier than to simply cast wall of force.
How do you know that dragons can cast rituals? So far it doesn't look like it.