Linked Spells means spells that doesn't level up on their own but instead are based on the sub-skills in that school. The spells in question will still give experience towards the school skill and sub-skills but not to itself.
For example Mana to Stamina is cast with 50.99 Lesser Magic. After the cast you get 51 Lesser Magic, then your Mana to Stamina will be level 51 aswell. But things linked to one of the sub-skills, like Heal Mount will not get the level of Lesser Magic but instead Lesser Magics Mana Efficiency, because that is the sub-skill that it is linked to
This goes for all linked spells, they will share the level of the closest prior sub-skill.
The idea is that the spells you don't use very often gets a chance to level up during normal play sessions instead of having to macroed standing in town.
|Earth Magic||Earth Magic|
|Acid Shield||Acid Shield|
|File:Durable Earth Magic.png||Durable Earth Magic||Durable Spells|
|Mana Efficiency Earth Magic||Mana Efficiency|
Regeneration Magic • Raw Magic • Infliction Magic • Air Magic • Earth Magic • Fire Magic • Water Magic • Spell Chanting • Arcane Magic • Witchcraft • Necromancy
Durable Spells • Mana Efficiency • Quicken Spells • Intensify Spells
|Magic Global Skills|
Veteran Mage • Mana Conservation •Archmage • Reagent Conservation