What's cheaper in the long run: Unbreaking/Efficiency or Efficiency? The unbreaking lasts longer but costs more to repair
Unbreaking 3 lasts 3x longer, and the avg. price of an eff. pick is, say, 500r, youd need 3 of those (1,500r) compared to 750r for both. Eff. / Unbreaking is the way to go
Unbreaking has a formula of usage.... (100 / Level + 1) % chance the pick's mining is used... Say it's unbreaking 3 ... that would be 100/4 % chance the pick is used aka 25% chance ... so every time the pick is used you have a 1 in 4 chance your pick will actually decrease in durability... No Unbreaking is 100% chance the pick is used (meaning will be destroyed no matter what).... Unbreaking I is 50% chance the pick is used ... Unbreaking II is 33% ... Unbreaking III is 25% ... the more unbreaking you have - the more likely the pick won't be used and will last a lot longer
My thoughts: as a work pick efficiency should always have unb III on it but if you find yourself dying in lava and losing all your stuff, you really need to A.Bring F. Resist potions or B.See if it is really worth it with some simple math.
