Ha ha! I made this ages ago. Maybe it's time to put it to some use? Anyway, let's see how my luck goes.
4d6 - 4 ⇒ (4, 6, 5, 6) - 4 = 17
4d6 - 1 ⇒ (4, 1, 1, 6) - 1 = 11
4d6 - 2 ⇒ (2, 5, 5, 4) - 2 = 14
4d6 - 2 ⇒ (5, 2, 3, 5) - 2 = 13
4d6 - 2 ⇒ (6, 2, 3, 3) - 2 = 12
4d6 - 2 ⇒ (2, 4, 3, 6) - 2 = 13
Hmmm. Well, that is definitely a Caster array. And 27 points? Not bad at all. Let me google some stuff and figure out what exactly I'm building.