Hey dave amigo!
Its starting to shape up nicely.
I don't have the book in front me, but damage Threshold does not reduce damage in 5e. It is the amount of damage you must do, to cause any damage. And if you do any damage above that threshold, you do all damage you inflicted. So, per standard 5e, if I hit the dragon for 15 damage it does nothing, but if I hit it for 21 damage it inflicts 21 damage.
That is quite similar but I better change it just to be on the safe side. Thanks.
Yes, I guessed that. My point was I don't like a "default" mechanic in general and in particular I don't like this one.
The main point to this new Bloodied mechanic is twofold:
1. Eliminate those encounters where the PCs know they will win the battle and are just going through the motions, with the monster now doing MAX damage it gives them a new problem to worry about.
2. Replicate that "a tiger is at its most dangerous when boxed into a corner" mentality.
Yes I agree, that is what I was suggesting. Increase the risk to get a benefit that is what I was saying, just more generally, not this specific example. I think we are on the same page.
Also means I don't have to think up 100 different "When Bloodied" game mechanics.
I agree, but it is costing this dragon more effort (a bonus action) than the standard dragon which can just do them as part of their multiattack action.
True, but I was just thinking its going to use Frightful Presence once at the start of the fight (likely flying in to attack) and then not use it again (unless reinforcements show up).
I read it after I posted, but I don't agree with your approach. Particularly because I don't like your bloodied mechanic and wouldn't use it. So then my statblock under performs.
Mathematically speaking overall it doesn't under-perform. In fact this dragon (even at 4 CR lower), is doing around 50-60% more damage each round.
However, that said, I understand what you mean, the breath weapon is THE iconic dragon breath attack but its 3 points lower.
In my defense if I make it any higher damaging then it gets a bit crazy. In tandem with the Bloodied mechanic* the dragon could ALREADY deal a hypothetical flat 320 fire damage (with no chance of resistance/immunity against fire). Which is 3.5 TIMES the damage of the official Ancient Red Dragon.
*which I know you don't want to use.
Regarding insidious gaze: I am not sure how you figured this into your CR, but I am of the opinion it shouldn't. At this CR/level the monsters need to be able to do the listed damage.
Okay so what's the point of Resistance/Immunity then?
This is the standard mechanic I use for immortals (although they do it automatically if they have the portfolio) to erase immunity/resistance.
Get hit once, Immunity drops to Resistance, get hit twice, lose resistance, get hit third time you are vulnerable to [insert energy type].
I am fine with the dragon having a breath attack that it can use every round, that is something I give my dragons, but not at the cost of having a really powerful breath weapon. The breath weapon is an iconic dragon ability. I already think it is to weak in 5e and you made it weaker. I would like to see how you can make it more impressive, not less so. More weaker attacks just doesn't say "dragon" to me.
Lol, this mere CR 20 Ancient Red Dragon is comparable to a CR 0 House Cat compared to stuff I have in the book.
But lets just look at this breath weapon for a second, it deals 88 damage which is 3 less than the 91 of the official Ancient Red dragon - which cannot attack when it uses its breath weapon.
...and that 88 damage is still greater than every other single attack and breath weapon in the Monster Manual (unless I am missing something).
Test away - always happy to give feedback.
Thanks so much amigo.