Advanced d20 Magic Review

 

Advanced d20 Magic cover

 

Advanced d20 Magic is the best magic system for Dungeons and Dragons, hands down.  A no level approach to magic, it's a system that does require math to work out.  All you are doing is add and subtract for this game system -- simple mathematics, really.  No Calculus is needed for this system.  This system is devised by David and Michelle Lyons for the Slayers d20 game by Guardians of Order (now owned by White Wolf, which is owned by Paradox Interactive).  Now, in this version, David and Michelle Lyons brings the magic system of the Slayers fully to regular D&D.

How the System Works

The system, called Dynamic Spellcasting, works by treating every spell at default like a spell you can cast at a single action as a stilled and silent spell.  As long as you are prepared to resist the drain (this part works like Shadowrun's magic system).  You cast a spell, and then you make a fortitude save to resist drain.  In BESM d20 games, this means you suffer drain of your energy points.  In regular d20, if you aren't using the optional Spell Points system from Unearthed Arcana, you suffer non-lethal damage for casting a spell.  How much damage depends on how powerful the spell is.

By Anthony Cournoyer.

A spell like fireball (Casting DC 31) will have you resisting 1d10 damage, for instance.  While a spell like wish (Casting DC 101) would have you resisting 16d10 damage.  As a result, you'll have more success casting spells with a lower Casting DC than a higher one.  Each spell has a Casting DC.  Which is the Difficulty Class of your fortitude drain.  But don't worry, you have the tools to reduce the punishment.

Forms and Focusing Agents

The system presents a number of forms to increase your chances of casting a spell. These include Invocations, Incantations, and Rituals.  An Invocation is one where your mage casts spell by invoking it's name -- loudly.  Everyone will know what kind of spell your casting when you invoke the spell while gathering it's energies.  That gives you a +5 bonus to your roll.  Another thing you can do is make an incantation.  This means you ritually chant while gathering the spell's energies.  This offers another +5 bonus to your roll. They stack, guys.  Additionally, you can cast it as a ritual, which offers a bonus depending on how long you do the ritual. That also stacks.

Additionally, you can add a focus to the roll.  This can be either basic (like a Divine Focus -- ie. your holy symbol) or an expendable focus (like bat guano for fireball).  These can offer +2 or +1 (or both) to your roll. Finally, you can make an investment of body (sacrificing hit points) and/or an investment of mind (sacrificing a number of experience points to cast your spell).

Metamagic Feats and Dynamic Spellcasting

 Two metamagic feats are included in the Casting DC of each spell -- Still Spell and Silent Spell (see the D&D 3.5 Player's Handbook or Pathfinder Roleplaying Game Core Rulebook).  You can cast any spell as one standard action as a still spell and silent spell.  The invocation and incantation forms just makes this easier. Adding any other metamagic feat (or a combination of metamagic feats) to your spell increases it's Casting DC.  Thus it makes the spell harder to cast. But worth it if you can pull it off.  

There are other rules to consider.  There are rules for cooperative casting, multiple spells, what happens if two different spells are cast -- and if they cancel out. There are rules for spell resistance, and controlling the magic if you fail your fortitude saving throw. Learning a new spell takes a number of slots.  A spell like goodberry would take one slot to learn, while wish would take four slots to learn. 

By Shaman's Stock Art (Anthony Cournoyer)

Even learning new spells are easy with this system.  All you need a copy of the spell and/or a teacher.  You learn the spell with a basic Knowledge: Arcana check or a Spellcraft Check with a DC that is -10 the Casting DC.  Thus, learning fireball only takes a DC of 21 to pass.  Easy enough, so far.  Inventing a spell with this system also is easier. You just need to work with your DM/GM and he sets the learning DC, and you have to pass the check to learn the spell.

Magical Characters

This chapter shows how you can use the system with existing rules.  For instance, it balances out the Dynamic Sorcerer class.  And then there is the magic attribute, and that is handled by this system.  Plus, each magic using character class in regular d20 is converted to this system.  For instance Sorcerers have 80 slots to learn spells, but get magical drain resistance.  Wizards can learn any spell they please, and divine spellcasters take one round to cast their spells.

Magic Items

There is a system for handling magic items. Again, you have to roll against DCs to make magic items, but you can add the spell needed and make the required investments of mind to make the magic item.  Easy peasy.

Converting Spells

Finally, there is a chapter on converting spells from other d20 System products (or Pathfinder 1e products!).  It's simple, check the spells base Casting DC, check what priority the spell has -- remember if a Wizard or Sorcerer gets the list, it's first in priority. Second, check see if it requires a focus of some sort, or a ritual form.  Then check if it requires an investment of mind or body.  Then check it's level to see how many slots it can take.  And wholla -- you converted the spell!

As an example, a spell taken from More Magic and Mayhem, the spell corruption!  Corruption is a first level warlock spell that normally takes 1 standard action to cast. This makes the Casting DC 20, since it is a Warlock spell -- it's treated as a sorcerer/wizard spell. Since it is a first level spell, it takes one slot to learn.  Easy enough!

So, since this is a great system -- it's compatible with all editions of D&D and Pathfinder -- why can't you get it from DriveThruRPG?  Well, I don't know what happened, but the only way to get Advanced d20 Magic is second hand.  You have to download it off the internet for free in order to enjoy it. Believe me it's worth it.  It will take your game to the next level, yes.