Java Edition:Negative Durability Warped Fungus on a Stick
The negative durability on a warped fungus on a stick is only possible by downgrading from 20w14a or later to 20w13a or 20w13b (1.16 snapshots).
Obtaining
The durability of the warped fungus on a stick in 20w13a and 20w13b (1.16 snapshots) was 25. In the April Fools' version 20w14∞, the durability was also 25. In 20w14a, the durability was raised to 100. The game saves how much durability remains using a {Damage:#} tag. Due to this method of durability storage, the actual durability will change when moving between these version ranges. The actually displayed durability is calculated by taking the maximum durability in a version and subtracting the damage. When updating from 20w13a, 20w13b, or 20w14∞ to 20w14a or later, the displayed durability will increase by 75 due to the increase from 25 to 100. When downgrading, the reverse occurs and 75 durability gets subtracted. For example, a negative durability warped fungus on a stick with a {Damage:99} tag in 20w14a will have 1 durability (100-99) but in 20w13a will have 25-99 = -74 durability (1-75=-74). Without further altering, however, updating the negative durability warped fungus on a stick back to later versions will cause its durability to revert to positive since the damage tag will once again be under the maximum durability. The durability can become more negative by combining two negative durability items in a crafting table or grindstone.
Combining
The negative durability warped fungus on a stick can be combined in a crafting table or grindstone to get further negative values. The resultant warped fungus on a stick from the combination is calculated by the following formula:
[ Warped Fungus on a Stick #1's Durability ] + [ Warped Fungus on a Stick #2's Durability ] + [ Bonus Durability ] = [ Resultant Warped Fungus on a Stick's Durability ]
In 20w13a, 20w13b, and 20w14∞, the bonus from combining is 1. In order to update this feature into versions 20w14a and later, the player must first get the negative durability below -75. Exactly -75 will turn into a zero durability warped fungus on a stick.
In 20w14a and later, the bonus from combining is 5. If negative durability warped fungi on sticks are brought into versions 20w14a, further negative durability can still be obtained.