Board Thread:The Gatehouse/@comment-64.237.232.254-20160816003954/@comment-28672580-20160816061244

Also, there's a guild called ➕ Habitica Plus, which has a challenge that adds a mana potion as well as an exp potion (you will still have to use Fix Character Values, as Purplatypus mentioned before).

They have some more pretty cool challenges that add more aspects to the game.