Requires the library mod Collective.

This mod is part of The Vanilla Experience modpack and Serilum's Extra Bundle mod.
All Loot Drops is a minimalistic mod that has entities always drop all their possible loot in a configurable amount. All loot drops are procedurally generated on first load, so every modded entity that has a loot table is compatible. There are config options to change the amount of loot that drops and if the looting enchant should have an effect.

Configurable: ( how do I configure? )
keepOriginalLootQuantityIfHigher (default = true): If for example Iron Golems drop more iron than the default lootQuantity setting, keep that original amount instead of nerfing it.
lootQuantity (default = 1, min 1, max 128): Determines the amount of loot dropped by each mob.
lootingEnchantAffectsQuantity (default = true): If enabled, the looting enchant has a chance to increase the quantity of loot dropped. Per level a roll is done with the chance from 'lootingEnchantExtraQuantityChancePerLevel'. If the roll succeeds, 1 is added to the loot amount.
lootingEnchantExtraQuantityChance (default = 0.5, min 0, max 1.0): The chance a roll succeeds in adding 1 to the total loot amount.

Simply Explained
By default a Witch has the following drop table: Glass bottles (12.5% chance), Glowstone dust (12.5% chance), Gunpowder (12.5% chance), Redstone (12.5% chance), Spider eyes (12.5% chance), Sugar (12.5% chance) and Sticks (25% chance).
With the mod enabled, you'll always receive lootQuantity amount of each whenever the entity drops its loot.
If the sword used to kill the entity has the looting enchant, for each level it has lootingEnchantExtraQuantityChance to increase the amount with 1.

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You may freely use this mod in any modpack, as long as the download remains hosted within the Modrinth ecosystem.

Serilum.com contains an overview and more information on all mods available.

Comments are disabled as I'm unable to keep track of all the separate pages on each mod.
For issues, ideas, suggestions or anything else there is the Github repo. Thanks!