Any spell casting character should have a Mana Pool (defined as an END reserve) to be able to cast spells. If they do not, the END of the spell is doubled. This isn’t true if the character has innate magical abilities, only if they cast spells. Therefore, for example, a dragon’s flight, though probably magical in nature, does not require a mana pool (it draws from the creatures END as normal). If, however, the dragon knows magic, those spells draw from the mana pool, and from personal END at 2X END Cost. The mana pool is built using a supplied prefab, and the modifiers cannot be changed without my expressed permission.
A character must have the Power Skill – Magery to cast any spells. This indicates their basic proficiency with magic. You may buy familiarity with this skill, but it makes for a poor mage.
Each individual spell is a skill, using the (KS) knowledge skill guidelines. Skill with an individual spell can NEVER exceed the character’s Magery skill. As such your Magery skill determines your maximum proficiency in spell casting.
The aforementioned Mana Pool is built as an END Reserve, which can have no greater than (Magery • EGO/2) points of END in it. Therefore, if a character had Magery of 13-, and an EGO of 12-, then the mana pool would top out at (13 • 12)/2 = 78 points of END. It is afforded a -1/2 limitation that it may only be used to cast spells. You may of course, buy less than the maximum, but never more.
All spells require the -1/4 limitation RAR (-1 per 20 active points in power), see p. 389, HS6EV1.
The character may not cast any spell with a real point cost of greater than (Magery + INT). Typically, extra time, components, gestures and incantations can be used to bring the spell to a manageable level, but real cost MUST be less than or equal to (Magery + INT).
No Spell will be built with Reduced or Zero Endurance options. The only way a mage can reduce the endurance is by buying a naked advantage Reduced Endurance On Spellcasting for a given active point cost. The active point cost allowed for can NOT exceed the mages (Magery Skill + Ego).
Even spells built with a charges limitation cost END to activate, based on the Active Point Cost.
Your Magery roll may be used to change certain aspects of a spell, especially if you wish to truncate it somewhat. You may use your Magery skill to eliminate the need for gestures, incantations, and extra time. To do this, your magery skill must be in excess of your skill with the spell, and if it is, for each element you attempt to eliminate, you must subtract an additional -2.
For example, let us say we have a mage with 18- Magery, and skill with a simple Spellbolt of 15-. Now, as the spellbolt requires both gestures and incantations, and our intrepid mage is bound and gagged, he must somehow manage it with these hindrances. A spellbolt has 20 Active Points and 10 Real Point cost. So as such he would normally need to roll 15 – 1 = 14-, to cast the spell, but since he is removing 2 limitations, he must roll first 18 – 4 = 14- to make the modification, and then 15 – 1 – 4 = 10- to sucessfully cast under these circumstances. IF you use your magery skill in this fashion, the END cost of the spell will be at FULL value, based on ACTIVE POINTS/5. Reduced END or Zero END advantages notwitstanding.
Since the above is in effect, there is no place for the “Spell (-1/2)” Limitation. All of the actions prohibited by that limitation are actually possible, assuming a proper Magery roll as described above.
Cantrips — If a spell has an active point cost less than one-half of the Mages Magery Score, it may be cast as a cantrip, with no endurance cost. The mage still must make a Magery roll, but it is at +2.
Divine magic works in a very similar fashion, substituting Divine Favor for Mana Pool, Power Skill: Priest of Diety X for Magery, KS: Prayer for KS: Spell, and PRE for INT. The primary differences will be the modifiers on the prayers, which will differ somewhat from spell modifiers. Limitations such as “In accordance with dieties will” or “As long as cleric is maintaining proper behavior and ethics appropriate to diety”.