Abyssal dagger is grossly inaccurate and under damaged compared to things such as crystal halberd which is cheaper and uses less special attack and can hit 110+. Also Dwarven rock cake feature "Guzzle" does not work, making it useless almost to lower hp as it only hits for 1hp per click.
The guzzle fix for the rock cake has already been suggested and accepted.
As for the abyssal dagger, I don’t feel it should be hitting as high as a crystal halberd as the latter hits twice with the spec versus monsters who take up multiple tiles, single hit otherwise.