[MENTION=5834]Celtavian[/MENTION], thank you for the report !
Seems to unfold as intended by the designers, and as expected by me (in the thread about legendaries as solo fights).
I think I agree with your ruling about blindsight : it takes special measures to attempt to hide inside the range of blindsight, which can be defeated by the Detect LA. Also, good luck for the burglar trying to snatch some treasure covered by several feet of ice or the "clever" group trying to starve a dragon in its larder... Trying to "kite" a dragon which has an at will ability blocking line of sight (the ice cloud lair action) and another one blocking access on top of it (the wall of ice lair action) seem also a quick way to add action heroes to the larder. Nice to see the PCs can prevail, though !
Seems to unfold as intended by the designers, and as expected by me (in the thread about legendaries as solo fights).
I think I agree with your ruling about blindsight : it takes special measures to attempt to hide inside the range of blindsight, which can be defeated by the Detect LA. Also, good luck for the burglar trying to snatch some treasure covered by several feet of ice or the "clever" group trying to starve a dragon in its larder... Trying to "kite" a dragon which has an at will ability blocking line of sight (the ice cloud lair action) and another one blocking access on top of it (the wall of ice lair action) seem also a quick way to add action heroes to the larder. Nice to see the PCs can prevail, though !