augment gold vs augment luck?

[The Last One]

I see that Augment Luck is used to create augment gold but is Augment Luck better for farming?

[Creamy]

You don't lose the base shard when crafting new shard, so there's no reason not to craft both.
And that entirely depends what you are farming. If you want gold only, then augment gold, if you want items then luck obviously.

[Salem]

Augment Luck isn't consumed in the process so craft as many shards as you wish.
Augment Gold allows 500, 1000 and 2000G bags to spawn on enemies and candles so it's pretty good to have if you need money. Ideally upgrade both to max rank to have them as permanent effects.

[Oguzhan]

Augment gold is better for gold farming. Augment Luck is better for everything else. It is recommended to max out both of them for an all achivements completion run. Money is very useful for alchemy as you can use it to get materials from shop.

Luck is good because some of the drops are really hard to get. Not as hard as anything from any of the previous castlevania games (that final armor in SOTN). I think you can get like 94% luck in this game. And if you use food items you can get over 100.

[Juno Brier]

Luck, apparently, helps your chances of getting critical hits. So that's pretty cool too.

[ShinkuTear]

Augment Gold is best as a 9/9 passive, don't bother equipping it after that, as it doesn't do anything of value when stacked with itself. Augment Luck is the 2nd best yellow shard to equip if you want drops of any sort(like money), best is Red Remembrance.