TEXT: Formulae Review
  225
  Appendix II
  FORM BONUS: 
  Form score/5 (rounded up)
  CASTING SCORE: 
  Technique + Form + Stamina 
  + Aura Modifier
  FORMULAIC CASTING TOTAL: 
  Casting Score + Die Roll
  RITUAL CASTING TOTAL: 
  Casting Score + Artes Liberales 
  + Philosophiae + Die Roll
  FATIGUING SPONTANEOUS MAGIC
  CASTING TOTAL: 
  (Casting Score + Stress Die)/2
  NON-FATIGUING SPONTANEOUS MAGIC
  CASTING TOTAL: 
  Casting Score/5
  PENETRATION TOTAL: 
  Casting Total + Penetration Bonus – Spell Level
  CONCENTRATION ROLL: 
  Stamina + Concentration + Stress Die
  LIMIT ON VIS USE IN SPELLCASTING: 
  The maga's score in the Art of the vis
  VIS BOOST TO CASTING SCORE: 
  +2 casting score per pawn
  VIS BOTCH DICE: 
  +1 botch die per pawn of vis used
  FAST CASTING SPEED: 
  Quickness + Finesse + Stress Die
  FAST CAST PENALTY: 
  –10 to Casting Score
  FAST CAST BOTCH DICE: 
  +2 botch dice
  DETERMINING FORM OF MAGICAL EFFECT:
  Perception + Awareness 
  vs. 15 – effect magnitude
  CEREMONIAL CASTING BONUS: 
  Add Artes Liberales and Philosophiae 
  to Casting Score
  AIMING ROLL: 
  Perception + Finesse + Die
  MASTERY ABILITY: 
  Adds to casting score 
  and subtracts from number of botch dice
  TARGETING: 
  Penalty of one for every 
  separate target, including the first
  TWILIGHT AVOIDANCE: 
  Stamina + Concentration + Vim Form Bonus
  + stress die vs. Warping Score 
  + Number of Warping Points gained 
  + Enigmatic Wisdom + local aura 
  + stress die (no botch)
  TWILIGHT COMPREHENSION: 
  Intelligence + Enigmatic Wisdom + stress die
  vs. Warping Score + stress die
  BOTCH DICE: 
  1 + 1 per Warping Point gained 
  to trigger the Twilight
  TWILIGHT TIME:
  Intelligence + stress die 
  vs. Warping Score + stress die
  Chapter Seven:
  Hermetic Magic
  ART SUMMA COST:
  Level + Quality
  ART SUMMA LEVEL LIMIT: 20
  ART SUMMA QUALITY LIMIT: 
  11 + (20 – Level), or 22, whichever is lower
  ABILITY SUMMA COST: 
  Quality + 3 x Level
  ABILITY SUMMA LEVEL LIMIT: 8
  ABILITY SUMMA QUALITY LIMIT: 
  11 + 3 x (8 – level), or 22, 
  whichever is lower
  TRACTATUS COST: Quality
  TRACTATUS QUALITY LIMIT: 11
  LAB TEXT COST: 
  1 Build Point per five levels
  VIS SOURCES COST: 
  5 Build Points per pawn of vis per year
  VIS STOCKS COST: 
  1 Build Point per 5 pawns of vis
  ENCHANTED ITEM COST: 
  2 Build Points per five levels of effect
  TEACHER COST: 
  Communication + Teaching + 
  Highest Ability Score
  SCORE LIMITS: 
  By age (see page 31)
  SPECIALIST COST: 
  Highest Ability Score
  SCORE LIMIT: 
  By age (see page 31)
  Chapter Six:
  Covenants
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  Ars Magica Fifth Edition
  SPELL MAGNITUDE: 
  Level/5 (rounded up)
  SPELL GUIDELINES: 
  Range: Personal; 
  Duration: Momentary; 
  Target: Individual
  INTELLEGO SPELLS:
  Not affected by Target size
  BASE INDIVIDUAL: 
  Determined by Form
  BASE PART: 
  Same as Individual
  BASE GROUP: 
  Mass of ten standard Individuals
  BASE ROOM: 
  Large enough for 100 standard Individuals
  BASE STRUCTURE:
  Ten base Rooms
  BASE BOUNDARY: 
  An area 100 paces in diameter
  INCREASING SIZE: 
  Multiply size by ten for each magnitude
  added to the spell.
  REQUISITE NECESSARY FOR SPELL’S EFFECT: 
  +0 magnitudes
  REQUISITE ENHANCES SPELL’S EFFECT: 
  +1 magnitude or more
  ADDED EFFECT IS PURELY COSMETIC: 
  No requisite
  INITIATIVE TOTAL: 
  Quickness + Finesse + Stress Die
  ATTACK TOTAL: 
  Presence + Technique or Form + Stress Die
  DEFENSE TOTAL: 
  Perception + Form or Technique 
  + Stress Die
  ATTACK ADVANTAGE: 
  Attack Total – Defense Total 
  (if Attack Total is higher)
  WEAKENING TOTAL: 
  Intelligence + Penetration 
  + Attack Advantage
  RESISTANCE TOTAL: 
  Stamina + Parma Magica
  LAB TOTAL:
  Technique + Form + Intelligence 
  + Magic Theory + Aura Modifier
  VIS EXTRACTION: 
  One tenth (round up) of Creo Vim 
  Lab Total pawns of Vim vis
  VIS LIMIT: 
  Magic Theory x 2 pawns per season
  MAXIMUM TOTAL LEVELS: 
  Teacher’s highest applicable Lab Total
  MAXIMUM LEVELS IN ONE
  TECHNIQUE AND FORM: 
  Teacher’s Lab Total in that Technique and Form
  HIGHEST LEVEL OF AN INDIVIDUAL SPELL:
  Student’s Lab Total in the Technique and
  Form of the Spell
  SIMILAR SPELL BONUS: 
  Magnitude of highest-level 
  similar spell known
  LONGEVITY RITUAL: 
  +1 bonus for every five points 
  or fraction of Creo Corpus Lab Total
  LONGEVITY RITUAL VIS COST: 
  1 pawn for every five years of age 
  (rounded up)
  WRITING LABORATORY TEXTS: 
  Latin x 20 levels per season
  COPYING LABORATORY TEXTS: 
  Profession: Scribe x 60 levels per season
  FAMILIAR BONDING LAB TOTAL: 
  Any Technique + any Form + Intelligence 
  + Magic Theory + Aura Modifier
  FAMILIAR BONDING LEVEL: 
  Familiar's Magic Might + 25 + (5 x Size)
  FAMILIAR BONDING COST: 
  1 pawn of vis per five levels or fraction. 
  Vis must match Technique or Form
  Chapter Seven:
  Hermetic Magic
  Continued
  Chapter Eight:
  Laboratory
  Chapter Nine:
  Spells
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  Ars Magica Fifth Edition
  INCREASE AN ABILITY BY ONE: 
  (Ability + 1) x 5 experience points
  INCREASE AN ART BY ONE: 
  Art + 1 experience points
  ADVANCEMENT TOTAL: 
  Source Quality + Bonus from Virtues –
  Penalty from Flaws
  EXPOSURE SOURCE QUALITY: Two
  ADVENTURE SOURCE QUALITY: 5–10
  PRACTICE SOURCE QUALITY: 
  3–8, usually 4
  TRAINING SOURCE QUALITY: 
  Master’s score in Ability being taught + 3
  TRAINING GAIN LIMIT: 
  Master’s score in Ability being taught
  TEACHING SOURCE QUALITY: 
  Teacher’s Communication 
  + Teaching + 3 + bonus
  TEACHING GAIN LIMIT: 
  The teacher’s score in the Art or Ability
  SUMMAE: SOURCE
  Quality and Level
  SUMMA STUDY LIMIT: 
  Summa Level
  TRACTATUS: SOURCE
  Quality
  VIS SOURCE QUALITY: 
  Stress Die + Aura Bonus
  SUMMA SOURCE QUALITY:
  Author’s Communication + 6 + bonus
  SUMMA GAIN LIMIT: Level of summa
  TRACTATUS SOURCE QUALITY: 
  Author’s Communication + 6
  COPYING CAREFULLY: 
  1 tractatus per season, or 6 + Profession
  (Scribe) points towards a summa.
  COPYING QUICKLY: 
  Three times as fast as careful copying, copy
  Source Quality is 1 lower than copied book.
  SUPERNATURAL ABILITY SOURCE QUALITY:
  Normal Source Quality – Total Score in
  Supernatural Abilities
  AGING TOTAL: 
  Stress die (no botch) + age/10 (round up) 
  – Living Conditions modifier 
  – Longevity Ritual modifier
  CRISIS TOTAL: 
  Simple die + age/10 (round up) 
  + Decrepitude Points
  INITIATIVE TOTAL: 
  Quickness + Weapon Initiative Modifier 
  – Encumbrance + Stress Die
  ATTACK TOTAL: 
  Dexterity + Combat Ability 
  + Weapon Attack Modifier + Stress Die
  DEFENSE TOTAL: 
  Quickness + Combat Ability 
  + Weapon Defense Modifier + Stress Die
  DAMAGE TOTAL: 
  Strength + Weapon Damage Modifier 
  + Attack Advantage
  SOAK TOTAL: 
  Stamina + Armor Soak Bonus
  ATTACK ADVANTAGE: 
  Attacker’s Attack Total 
  – Defender’s Defense Total
  RECOVERY TOTAL: 
  Stamina + Medic’s Chirurgy or Medicine score
  + Magical Aid + Stress Die
  NON-COMBAT DAMAGE TOTAL: 
  Damage Bonus + Stress Die
  NON-COMBAT SOAK TOTAL: 
  Soak Total + Stress Die.
  CREATURE MAGIC RESISTANCE: 
  Might Score
  CREATURE PENETRATION: 
  Might Score – (5 x Might Points spent 
  on power) + Penetration Bonus
  CHARACTER PENETRATION: 
  Effect Roll – Ease Factor 
  + Penetration Bonus
  REGIO SIGHT ROLL: 
  Perception + Appropriate Ability 
  + Stress Die
  EASE FACTOR: 
  5 + (2 x difference between current level’s
  aura and sought level’s aura)
  CREATURE MAGIC RESISTANCE: 
  Might Score
  CREATURE POWER PENETRATION: 
  Might Score – (5 x Might Point cost of 
  the power) + Penetration Bonus
  CREATURE POWER LEVEL FOR DISPELLING:
  Creature’s Might Score
  Chapter Ten: 
  Long-Term Events
  Chapter Eleven:
  Obstacles
  Chapter Twelve:
  Realms
  Chapter Thirteen:
  Bestiary
  Permission granted to photocopy for personal use. © 2004 Trident, Inc. d/b/a Atlas Games.
  
SOURCE: textdata/thevault/Ars Magica [multi]/5th edition/Ars Magica 5e - Formulae Review.pdf