This mod adds a lot of potions to the game. For example the explosion resistance potion, the light air potion (you can fly like in the creative mode), the prohibition potion (you cant drink any more potions while active) and a lot more :)
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Some potions may change the world around you drasticly, like explosions and bedrock :) Some potions give you great advantages like changing the game mode, others spawn entities :)
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Have fun!!!