Big 0.2 update 

New potion effects

These effects come with some pre-configured settings for demonstration, but are meant to be tweaked by modpacks to make the most out of them. All values, ranges, coordinates, and biomes are configurable. All effects have custom icons and even overlays included, modifiable via resource packs to suit your needs. None of these potions are craftable by default

• Webbed: Each level slows players by 25% of their speed up to 75%, and it can be entirely removed by "struggling" (pressing the movement and jumping keys). Receiving any fire damage instantly removes the webbed effect too. Has a grace period after removing it.
  • Can be applied by mobs using a mod like Rebirth of the Mobs' mob offense feature
  • Has a custom screen overlay
• Soul Stream: Removes friction and fall damage, allowing almost unlimited speed when coupled with speed buffs. Has a "fire" visual/sound effect when falling from great heights (credits to Cyclic's bounce effect)
• Clean: While active, each level is consumed to prevent an instance of configured effects affecting the player
  • Be default, protects against poison and nausea
• Sweltering/Scorching: Sweltering adds a countdown effect which raises in level while under the configured biomes, until it transforms into Scorching, which will progressively lose max health (more details on the description page)
  • Has a custom screen overlay 
  • By default it applies on mesa biomes
  • Can be counteracted with Vanilla's water bottle as well, by increasing the cooldown
• Gale Barrier: For each level of this effect, it stops the timer for the corresponding level of Sweltering
• Freezing/Cooling: Freezing damages the player each X ticks and slows them down. Similarly to Sweltering, it only becomes dangerous after a configurable amount of time is spent in a biome or standing on a block (runs on an invisible timer). Cooling is an instant effect that can force freezing outside of the configured conditions for a certain amount of time per level (more details on the description page)
  • Has a custom screen overlay
  • By default it applies on cold taiga biomes
• Warming: Instant effect that quickly removes freezing and gives immunity to it
• Cardiac Arrest: Player max health is reduced to 1, locked with a chain to prevent regeneration; and is blinded. On effect end, healthbar goes back to normal (For those that have unimaginable eldritch horrors in their modpacks! or realistic cholesterol)
  • Has a custom GUI overlay
• Strong Heart: Entirely prevents Cardiac Arrest while active

New items

• Smelting Vessel: A throwable item that can store custom item NBT. When thrown, it will break on impact and drop the defined items
  • Can be used as a way to give players mistery loot, or for immersive smelting of items (custom recipe with raw ore, cook vessel to output a vessel containing the refined ingot), or anything you can think of