Skills in Runescape are a player's abilities that may be developed throughout the game. Any given skill can be trained by various actions that relate to the skill.
Grants players using melee weapons higher accuracy, thus increasing the number of hits dealt to an opponent during any given time period. Because more of the player's hits will be successful, the player's opponent will incur more damage per any given time period. Stronger weapons also require higher levels of Attack in order to equip.
During melee, higher strength increases a player's maximum potential damage to an opponent for each successful hit. Stronger member's weapons may also require higher levels to equip. Also gives access to various agility shortcuts.
Prayer allows players to pray for assistance in combat, such as for stat boosts and immunity from attacks. Effects last until the player runs out of prayer points, or turns their prayers off. It can also be used to repair or bless gravestones. With a higher level you can also wear God robes and Temple Knight armour.