Falling Icicle
Adventurer
In older editions, wizards couldn't wear armor and cast spells, with rare exceptions like elven chain.
In 3.x, they added arcane spell failure, which gave a % chance to miscast spells while wearing armor. Lighter armors, like leather, had a much smaller spell failure chance than heavier armors. This allowed wizards to wear armor, but at a risk.
4e did away with armor restrictions for spells entirely. Wizards could cast spells in plate mail just fine, they just weren't proficient in any armor and would have to spend several feats and meet steep ability requirements to wear it.
In the 5e playtest, we've gone back to the old edition rules. Wizards can't wear armor and cast spells - period. I'm interested to know how people feel about this.
In 3.x, they added arcane spell failure, which gave a % chance to miscast spells while wearing armor. Lighter armors, like leather, had a much smaller spell failure chance than heavier armors. This allowed wizards to wear armor, but at a risk.
4e did away with armor restrictions for spells entirely. Wizards could cast spells in plate mail just fine, they just weren't proficient in any armor and would have to spend several feats and meet steep ability requirements to wear it.
In the 5e playtest, we've gone back to the old edition rules. Wizards can't wear armor and cast spells - period. I'm interested to know how people feel about this.