Cast versus Armor: Difference between revisions

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m (→‎Cast versus Armor by Armor Subgroup: Updated to include shield CvA benefits from Cyper's post of 8 Sept 1995, introducing CvA.)
m (Reworded slightly and removed some repetitive links.)
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'''Cast versus Armor''', or '''CvA''' is a term that applies to [[warding]]-based [[:Category:Offensive Spells|attack spells]]. Heavier [[armor]] types are harder to penetrate, even with magic, as reflected by this value. Magical or [[Enchant Item (925)|enchanted]] [[armor]]s protect the wearer better than non-magical or non-[[Enchant Item (925)|enchanted]] [[armor]]s, and this differential also increases with the heavier types of [[armor]].
'''Cast versus Armor''' (CvA) is a factor in [[warding]] attack spells that reflects how well [[armor]] protects against magic. Lower CvA means the armor is more protective. Heavier armor types are harder to penetrate. Magical or [[Enchant Item (925)|enchanted]] armors protect the wearer better than non-magical or non-[[Enchant Item (925)|enchanted]] armors, and this differential also increases with the heavier types of armor.


These numbers apply directly to the warding roll. In practice, wearing heavier armors, as well as those that are magical, is practically equivalent in the mathematics to having a higher [[Target defense]] for any target.
These numbers apply directly to the warding roll. In practice, wearing heavier and magical armor is equivalent to having a higher [[target defense]] for any target.


== Cast versus Armor by Armor Subgroup ==
== Cast versus Armor by Armor Subgroup ==
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*[[Armor Use]]
*[[Armor Use]]


[[Category:Basic Mechanics]]
[[category:Magic]]
[[Category:Magic]]

Revision as of 19:52, 4 December 2015

Cast versus Armor (CvA) is a factor in warding attack spells that reflects how well armor protects against magic. Lower CvA means the armor is more protective. Heavier armor types are harder to penetrate. Magical or enchanted armors protect the wearer better than non-magical or non-enchanted armors, and this differential also increases with the heavier types of armor.

These numbers apply directly to the warding roll. In practice, wearing heavier and magical armor is equivalent to having a higher target defense for any target.

Cast versus Armor by Armor Subgroup

Armor Subgroup Normal Magical
Normal clothing 25 20
Robes 20 15
Light leather 20 15
Full leather 19 14
Reinforced leather 18 13
Double leather 17 12
Leather breastplate 11 5
Cuirbouilli leather 10 4
Studded leather 9 3
Brigandine armor 8 2
Chain mail 1 -6
Double chain 0 -7
Augmented chain -1 -8
Chain hauberk -2 -9
Metal breastplate -10 -18
Augmented breastplate -11 -19
Half plate -12 -20
Full plate -13 -21

Per GM Cyper's post introducing CvA, use of a non-magical shield will provide -5 CvA, and a magical shield -10 CvA, which is not cumulative with armor. Functionally, this means that shields only provide a CvA benefit when Armor Group 1/clothing is worn.

See Also