What I really want to know is why Hussar and a few others think you have all this time to try tactics it can save against on a dragon. I don't understand it. Have they really not been hit by a round of dragon actions? Or do they have a ton of magic items to resist things?
If a wizard or cleric with 45 to 60 hit points show his face around a dragon, it can ignore the martials and hammer the casters knocking them down in a single round, possibly killing them outright if they close melee. Knocking someone unconscious is as bad as sticking a hold monster on them. They all hits get advantage and automatically critical hit causing a two missed death saves. The best tactic for the dragon is kill anyone that appears to be lightly armored and/or casting. They can do this by grabbing them up and taking them to an isolated location or if the initiative falls badly, knocking them down with a breath weapon followed by lair action, and single legendary hit causing three missed death saves. One dead, fly off, rinse and repeat while waiting for breath to recharge.
Don't even stay in range for them to attack. Take full cover between assaults out of reach of any of the characters without fly. The dragon doesn't care if the PCs tuck tail and run. It's won if they do that.
These tactics that say, "Use this spell. Use that spell." don't even take into account a round of failing. They seem to think if the dragon saves against Abjure Enemy they have plenty of time to try something else. If the dragon saves against Tasha's or resists Bigby's, plenty of time to try again. There isn't plenty of time. If your visible as a mage and you miss, guess where the dragon is coming. "Hello mage. How are you? I resisted what you do. Let's see if you can resist what I can do." It was rough. Dragon DPR is no joke if they are a deadly challenge to your party. PCs were dropping like flies. A cure wounds spell might get them back on their feet for a round. You just spent your action to keep a guy up for a round, the dragon brings him down again and maybe kills him.
White dragons are particularly nasty too with the 20 foot radius freezing fog. That fog really messed us up in difficult terrain. The AoE attack is nasty and the wall. Out of the dragons, a white dragon has some nasty lair actions.
If a wizard or cleric with 45 to 60 hit points show his face around a dragon, it can ignore the martials and hammer the casters knocking them down in a single round, possibly killing them outright if they close melee. Knocking someone unconscious is as bad as sticking a hold monster on them. They all hits get advantage and automatically critical hit causing a two missed death saves. The best tactic for the dragon is kill anyone that appears to be lightly armored and/or casting. They can do this by grabbing them up and taking them to an isolated location or if the initiative falls badly, knocking them down with a breath weapon followed by lair action, and single legendary hit causing three missed death saves. One dead, fly off, rinse and repeat while waiting for breath to recharge.
Don't even stay in range for them to attack. Take full cover between assaults out of reach of any of the characters without fly. The dragon doesn't care if the PCs tuck tail and run. It's won if they do that.
These tactics that say, "Use this spell. Use that spell." don't even take into account a round of failing. They seem to think if the dragon saves against Abjure Enemy they have plenty of time to try something else. If the dragon saves against Tasha's or resists Bigby's, plenty of time to try again. There isn't plenty of time. If your visible as a mage and you miss, guess where the dragon is coming. "Hello mage. How are you? I resisted what you do. Let's see if you can resist what I can do." It was rough. Dragon DPR is no joke if they are a deadly challenge to your party. PCs were dropping like flies. A cure wounds spell might get them back on their feet for a round. You just spent your action to keep a guy up for a round, the dragon brings him down again and maybe kills him.
White dragons are particularly nasty too with the 20 foot radius freezing fog. That fog really messed us up in difficult terrain. The AoE attack is nasty and the wall. Out of the dragons, a white dragon has some nasty lair actions.