herblore to make the prayer renewal potion. Once it is combined with a Fellstalk potion (unf), it produces a Prayer renewal (3) potion. Morchella mushrooms can be purchased for 80,000 gp ea at Fernahei's herblore store in Neitiznot South. In Runescape, you can plant Morchella mushroom spores and harvest the mushrooms. That is not the case in Soulsplit, as it is bugged like a lot of other things.
Using morchella mushrooms is a fast way to gain Herblore exp, but it's also expensive and not recommended if you do not have enough money.