Not sure if anyone did the maths on that recently (I did not see any thread on this) but I just did.
If you roll for stats each level (lol, Crom protect you if you do) but still, if you do, you would find durable to be more then good, you would find it to be THE feat to take.
Here are the maths.
D6 = 3.5 -> 4.47 (inferior to toughness).
D8 = 4.5 -> 5.81
D10 = 5.5 -> 7.15
D12 = 6.5 -> 8.49
HP Bonus at level 10 (and bonus over toughness):
D6 = 37.5 -> 46.25 (1.25 less then toughess)
D8 = 48.5 -> 60.31 (+1.81)
D10 = 59.5 -> 74.35 (+4.85)
D12 = 70.5 -> 88.38 (+7.88)
So by level 10, if you use D12 you will have nearly 8 more hp from durable then from toughness (you can of course stack them). You still get to roll the dice twice on short rest, which make durable much better.
My suggestion is
1) Make toughness less boring by maybe making it stronger versus durable at level 1.
2) Make durable usefull if you don't roll for HP (lol rolling for hp).
By rolling 2 dices you are also a bit 'protected' from the random god of rolling for hp and should have a more even distribution also.
If you roll for stats each level (lol, Crom protect you if you do) but still, if you do, you would find durable to be more then good, you would find it to be THE feat to take.
Here are the maths.
D6 = 3.5 -> 4.47 (inferior to toughness).
D8 = 4.5 -> 5.81
D10 = 5.5 -> 7.15
D12 = 6.5 -> 8.49
HP Bonus at level 10 (and bonus over toughness):
D6 = 37.5 -> 46.25 (1.25 less then toughess)
D8 = 48.5 -> 60.31 (+1.81)
D10 = 59.5 -> 74.35 (+4.85)
D12 = 70.5 -> 88.38 (+7.88)
So by level 10, if you use D12 you will have nearly 8 more hp from durable then from toughness (you can of course stack them). You still get to roll the dice twice on short rest, which make durable much better.
My suggestion is
1) Make toughness less boring by maybe making it stronger versus durable at level 1.
2) Make durable usefull if you don't roll for HP (lol rolling for hp).
By rolling 2 dices you are also a bit 'protected' from the random god of rolling for hp and should have a more even distribution also.