There are many different potions that can be used to PK in Old School RuneScape. Here are five of the best ones to use for this purpose.

  1. Fasting Elixir: This potion is great for quickly boosting your stats and helping you reach your goals. It costs 50 coins to buy from the store, and it lasts for 30 minutes.
  2. Herbalism Potion: This potion is perfect for healing yourself and others around you. It costs 25 coins to buy from the store, and it lasts for 30 minutes.
  3. Magic Potion: This potion is perfect for increasing your magic power and making your spells more powerful. It costs 50 coins to buy from the store, and it lasts for 30 minutes.
  4. Strength Potion: This potion is perfect for increasing your strength and power while also helping you survive in combat. It costs 25 coins to buy from the store, and it lasts for 30 minutes.
  5. Prayer Potion: This potion is perfect for increasing your prayer points and helping you reach higher levels in prayer. It costs 50 coins to buy from the store, and it lasts for 30 minutes.