Here's some more cool ideas for runes I had:
Beating Heart Rune (Tier I to V, Cannot exceed Tier V): (Only for Chest Equips) For each % health missing from your total Health, your HP regeneration is increased by 0.025%...0.1% of your total HP.
Focused Mind Rune (Tier I to V, Cannot Exceed Tier V): (Only for Helmet Equips) For each % Mana missing from your total Mana, your MP regeneration is increased by 0.025%...0.1% of your total MP.
Despising Rune: (Only for Shoulder Equips) Increases your Magic and Physical Power by 1.5%...7.5% and increases your aggro by 2%...10%.
Forgiving Rune: (Only for Pants Equips) Increases your Healing Power by 1.5%...7.5% and increases Critical Heals by 2%...10%.
Forgetting Rune: (Only for Belt Equips) Increases all Damage, Magical and Physical, and Healing done by 1%...5% but increases all casting costs by 0.5%...2.5% of their initial casting cost.
Here are some fun ones that probably will never make it into the game but are still fun to think about:
Hover Rune(Tier I to V, Cannot Exceed Tier V): (Only for Feet Equips) Reduces falling damage by 10%...50% and decreases falling speed by 5%...25%. (This rune and Iron Sole Rune cannot be embedded in the same equip)
Iron Sole Rune(Tier I to V, Cannot Exceed Tier V): (Only for Feet Equips) Increases Falling Speed by 10%...50%. Upon receiving fall damage, your movement speed is increased by the percent of health you lost from falling for 5 seconds. (This rune and Hover Rune cannot be embedded in the same equip)
Phoenix Sole Rune(Tier I to V, Cannot Exceed Tier V): (Only for Feet Equips) Decreases Fire Damage dealt to you by 1%...10%. When you receive Fire Damage from a target, your movement speed increases by 1%...10% and leaves a trail of flames behind you lasting 3 seconds. (Ignores Damage over Time effects and cannot be triggered more than once every 6 seconds)
Arching Rune: (Only for Ranged Weapons) Auto-attacks with this weapon deal up to 1%...10% additional ranged weapon damage depending on the distance from you to your target and ignores armor. The farther the distance the more damage this will cause.
Repellant Rune: (Only for Cloak Equips) Damage received from the behind the player is reduced by 1%...10%.