Wrathamon
Adventurer
This is exactly why IMPROVISED ACTIONS are allowed...
I think we can all agree to some degree that the rules for improvised actions is where many players wish more more mechanics were given out to players, either in the MM or DMG to give a better framework for DMs.
The PHB improvised rules are for PCs and yes a DM can extrapolate, but it would be nice to have a p.42.
I think beating this monstrous horse is starting to be silly.
Should the this legendary creature have more of the abilities from past editions to make it the most Dreaded creature? For some DMs, probably, so add them and move on.
Saying that Wotc should have added them, is in the past. THEY DIDNT. I don't see the benefit of debating it over and over again? oh wait, that's what threads are for right?
This thread has some great ideas on what to add, how to improvise, and what types of players to look out for when you're a DM, and what types of DMs to look out for if you're a player.
I think a a FAQ on this thread could be made with a sticky post.