Can mage characters cast in armor now if they somehow gain proficiency? I'm not seeing a rule that forbids it...I'm contemplating a mage/thief character and am wondering if leather or studded leather would be a better option than Mage Armor (frees up a spell slot)
Honestly, the value of it depends on the group and it's playstyle. During the playtest, I often found that the Mage/Wizard would go most of an Adventure without being attacked, so in those types of games it's not much of a benefit. In other games, everyone is attacked all the time, so it's almost a necessity.
If your concept already gets you armor proficiency, then you're always better off with that. Even if it's lower than Mage Armor, it's protection that doesn't really cost you anything beyond some gp. Like your concept tooMaybe. But the character I am thinking of would be a illusionist/assassin. He'd generally avoid melee and use trickery and magic to get himself out of it (Minor Illusion, Fog Cloud, Invisibility, Blink, Etc.). I don't want to waste a prepared spell on mage armor to boost his AC. With a 16 Dex and Leather he'd have a 14 AC...not as good as Mage Armor (16). But not terrible and could boost it when needed with Shield (AC 18) when needed until he has more defensive spells such as blink, invisibility and haste.
No...this character won't be some uber assassin or melee combatant. It's more just an interesting character to me.
I sure hope not, or not without a very significant chance of failure and-or wild surge.Can mage characters cast in armor now if they somehow gain proficiency?
Maybe. But the character I am thinking of would be a illusionist/assassin. He'd generally avoid melee and use trickery and magic to get himself out of it (Minor Illusion, Fog Cloud, Invisibility, Blink, Etc.). I don't want to waste a prepared spell on mage armor to boost his AC. With a 16 Dex and Leather he'd have a 14 AC...not as good as Mage Armor (16). But not terrible and could boost it when needed with Shield (AC 18) when needed until he has more defensive spells such as blink, invisibility and haste.
No...this character won't be some uber assassin or melee combatant. It's more just an interesting character to me.