The Ultimate Strength prayer gives a temporary 6% boost to a player's Melee damage and it needs 31 prayer level to use. It cannot be used with any of the other prayers that provide a strength bonus. It replaces Superhuman Strength when unlocked.

This prayer is popular among free players as it gives a reasonable strength boost.

v • d • e Prayers
Melee	Attack  Clarity of Thought  Improved Reflexes  Incredible Reflexes  Chivalry  Piety Strength  Burst of Strength  Superhuman Strength  Ultimate Strength  Chivalry  Piety
Magic	Attack  Mystic Will  Mystic Lore  Mystic Might  Augury Strength  Charge  Super Charge  Overcharge  Augury
Ranged	Attack  Sharp Eye  Hawk Eye  Eagle Eye  Rigour Strength  Unstoppable Force  Unrelenting Force  Overpowering Force  Rigour
Protection	Thick Skin  Rock Skin  Steel Skin  Summoning  Magic  Missiles  Melee  Protect Item
Restoration	Rapid Restore  Rapid Heal  Rapid Renewal
Knight Waves	Chivalry  Piety  Augury  Rigour
Miscellaneous	Retribution  Redemption  Smite