I'd like to join the TankMages too. I have a lvl 22 FF/Dark on Liberty I could recreate. I'd probably take out fitness & speed and get medicine & teleport instead. Here's the sample build I was thinking of for the team:
Exported from version 1.5A of CoH Planner
http://joechott.com/coh
Archetype: Defender
Primary Powers - Ranged : Force Field
Secondary Powers - Support : Dark Blast
01 : Dark Blast dam(01) dam(42) dam(45) dam(48) dam(50)
01 : Deflection Shield defbuf(01) defbuf(3) defbuf(3) defbuf(5) defbuf(5) defbuf(11)
02 : Gloom dam(02) dam(42) dam(45) dam(48) dam(50)
04 : Moonbeam dam(04) dam(42) dam(45) dam(48) dam(50)
06 : Insulation Shield defbuf(06) defbuf(7) defbuf(7) defbuf(9) defbuf(9) defbuf(11)
08 : Assault endred(08)
10 : Stimulant inttim(10) inttim(37)
12 : Dispersion Bubble defbuf(12) defbuf(13) defbuf(13) defbuf(17) defbuf(19) defbuf(21)
14 : Tactics thtbuf(14) thtbuf(15) thtbuf(15) thtbuf(17) thtbuf(19) thtbuf(21)
16 : Tenebrous Tentacles dam(16) dam(23) dam(25) dam(27) dam(29)
18 : Maneuvers defbuf(18) defbuf(31) defbuf(33) defbuf(34) defbuf(36) defbuf(37)
20 : Night Fall dam(20) dam(23) dam(25) dam(27) dam(29)
22 : Grant Invisibility defbuf(22) defbuf(31) defbuf(33) defbuf(34) defbuf(36) defbuf(37)
24 : Dark Pit disdur(24)
26 : Aid Other inttim(26) inttim(40) hel(40) hel(46) hel(46) hel(46)
28 : Torrent dam(28) dam(31) dam(33) dam(34) dam(36)
30 : Resuscitate recred(30)
32 : Force Bubble endred(32)
35 : Recall Friend endred(35)
38 : Blackstar dam(38) dam(39) dam(39) dam(39) dam(40)
41 : Teleport endred(41) rng(43) rng(43) rng(43)
44 : Power Buildup recred(44)
47 : Invisibility defbuf(47)
49 : Phase Shift endred(49)
-------------------------------------------
01 : Brawl enhancement(01)
01 : Sprint enhancement(01)
02 : Rest enhancement(02)
As you can see I emphasize my bubbles initially. It isn't until my 20s do I really slot my attacks. Let me know if you think I should slot attacks a bit more early. Great idea you have here TopDoc.