Lab coat
From Twilight Heroes Wiki
lab coat
Plural: lab coats
Since only the smartest (or craziest) of scientists wear these things, it only follows that if you're wearing one of these things, you're going to be among the smartest (or craziest) of heroes. (I could tell you which, but it'd ruin the surprise.)
Shirt
Power: 33
Level Required: 8
Autosell value: 160
Can be welded
+5% Intellect
+2 XP per combat
How Obtained
Other Uses
Can be welded with cybertronium to make Smart shirt.