PreventInvalidPotions - dniym/IllegalStack GitHub Wiki

ON BY DEFAULT - Affects MULTIPLE Versions

Prevents non-opped players from possessing invalid / uncraftable potions. Typically these are used for malicious purposes on creative servers such as potions of instant death.

• Potion of Death - Instantly kills any player who drinks it, even in Creative mode

• /give @p potion 1 0 {CustomPotionColor:16711680,CustomPotionEffects:[{Id:6,Amplifier:125,Duration:20}],display:{Name:"Potion of Death"}}

Any value above 124 instantly kills anyone who drinks the potion, there are a TON of these that based on their value do strange / dangerous things.

Flu Epidemic - Gives players 60 seconds of poison, nausea, and blindness

• /give @p minecraft:splash_potion 1 0 {CustomPotionColor:17408,display:{Name:"Flu Epidemic"},CustomPotionEffects:[{Id:15,Amplifier:10,Duration:1200},{Id:9,Amplifier:10,Duration:1200},{Id:19,Amplifier:10,Duration:1200}]}

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To enable / disable this protection use the following command: /istack toggle PreventInvalidPotions

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This protection has no extra options.