5e Rule. If you don't have proficiency in the armor you cannot cast spells. Wizards can gain proficiency through feats. Takes 3 feats to get to heavy unless you are a Dwarf or Gith.

Gith and Dwarf start with it so that make good spell casters due to armor. Seems strange that a Dwarf can be better due to armor skill, but can wear medium armor right off the bat and does not need to use that spell slot for mage armor.

If you don't take feet, Mage Armor is one spell per day and gives decent AC.

Last edited by Kimo; 15/10/20 05:32 PM.