Final Stand

I REALLY like this feat! An interesting way to incorporate some of the subclasses' abilities without completely taking being too much into their territory.

it just seems a tiny bit too OP. maybe going away with two of the death saving throw buffs would make it a bit more balanced?

This is the best! I would use this a ton for a barbarian! THIS IS AMAZING!

Says "drop to 0 health points". Should be "hit point".

I feel adding your con modifier makes it too powerful, the uncommon item Amulet of health and you go from a 50/50 to a 70/30.  Out side of that I like it

“and crit on a 19 or 20” 

Shouldn’t that be “and your attacks score a critical hit on a roll of 19 or 20”?

This feat is awesome! Love it!

Remove the con modifier bonus and auto stability at a 18 or 19, those are way too over powered. Also, you didn’t say what the save DC was for the con saving throw. I imagine it would work like a spellcaster’s concentration saving throw, but you didn’t say.

Very interesting! Perhaps a bit too good. I would say to make it recharge after 1d4-1 long rests or something but then it's a bit niche so idk.

Quote from prenfrew1614 >>

I feel adding your con modifier makes it too powerful, the uncommon item Amulet of health and you go from a 50/50 to a 70/30.  Out side of that I like it

 I agree, but normally it's a 55/45 chance of success. (1-9 is a fail, 10-20 is a success, so 9 rolls are a fail and 11 rolls are a success.)

Kinda powerful cause this is almost just the Samurai's 18th level ability.

WAAAAAAY too OP.

Quote from Benz74M >>

Says "drop to 0 health points". Should be "hit point".

 But saying "drop to 0 health points" is the right way to say it. 1 point is singular, literally everything else is plural.

It's overtuned, especially for a general feat. The prerequisite needs to be way higher (probably epic boon) since you can basically take this level 1 as a human since humans gain a bonus general feat and you only need 13 con which is super easy to get. The benefits you gain from this is basically relentless rage without rage for 1 turn, which temporarily gives you permanent reckless attack without the drawbacks and improved critical. Then you get superior critical on death saving throws and death saving throws becomes easier. Basically a feat which you can get at level 1 gives you a 1 turn level 11 barbarian feature + level 2 barbarian feature + level 3 fighter subclass feature, then you also get an adjusted level 15 fighter subclass feature for death saving throws, and this still doesn't include the ability score increase and modifier application on death saving throws. Like are you trying to get the dm to rage quit at early levels?