We know that many powerful potions can be made with brewage system in Reliquary . Resistance V, as the most powerful potion, keep the player free of all kinds of damage except the void, while it takes four diamonds and some iron ingots to brew.

Diamond veins has become more rich since the cave update of Minecraft, which brought down the cost of powerful potion. Now we just need a single exploration of the huge cave, we can make Resistance V potion and face the final boss of Minecraft or other mod, as long as we have Apothecary Cauldron and Apothecary Mortar. Even if the two critical items cannot be obtained too easily, everything goes too smoothly after them.

I think maybe some balance should be brought out now. What follows is just imagination:

• Add some limits to the brewage of powerful potion. I don't want to see these most powerful potions disappeared in Reliquary, but I think limits are needed. When the potion essence have it's potency of II and over II, and try to go further on potency though Apothecary Mortar, a random negative effect will become a part of the essence in each try of increasing the potency, having a random duration ranged from 20% to 50% of the main effect's duration.
• Add some items that can remove negative effects in varying degrees. As an example, holy water or somewhat used in Apothecary Mortar or Apothecary Cauldron, remove all the negative effects and lower down one level of positive effects(Additionally, It can be used directly as splash potions, removing all negative effects, lowering down random levels and reduce duration).
• I foresee a much more complete brewage system in Reliquary, which means that some tips and hints should be added. Considering the topic of Reliquary, "Collecting", I imagine that some scrap of notes and hints related with brewage can be added to Generated loot in fortress or other structures(Feel like Thoth's Emerald tablet, recording alchemy knowledge).

Whatever you do with that, this mod has brought me much pleasure. Much thanks.