An easy combo can be done with the abilities of the psychological: use immediately traumatize (you MUST equip it two times in your action bar), then haunt. After that, the stun effect will disappear; use again traumatize. Next, dark infusion on yourself to start recovering your focus; end of the second stun. You'll have two turns, in which ones the Baron may use tick tock. If he does so, he'll run out of focus. Do whatever you want (using the free will on the character who received tick tock can be useful, as it will shield and heal him especially at grade 4: shield equal to 500% + heal equal to 130% of your instinct), but wait before using again traumatize; he'll cast deep burning. You know what to do for the next turns: keep using traumatize to reduce the Baron's focus (keep haunt active), and cast free will to protect yourself and your allies from tick tock. You can use dark echoes while deep burning is active (he will take shadow damages; dark echoes reduce that resistance).
By ruining the Baron's focus, you can defeat him easily. As a biological, you'll see a good comment in the most rated ones (about the disrupt ability) by Knuffy2; as a psychological, it gets harder. Your best offensive weapon is the haunt ability (at grade 2, -5 focus every turn over 40 turns) combined with the high voltage (at every grade, +20% damages, so cast it when the Baron is bound to use his famous Burning ability) and traumatize (at grade 2, -15 focus every turn added to the stun, over 2 turns). If you need focus, don't forget to use the electrical storm (it costs nothing but the bonus is weak, only 8 points during 3 turns), the dark infusion on yourself (Veradux will heal you, and you'll recover 15 focus every turn over 3 turns for free) or the wraith form (+50 points, but don't forget the cooldown of 10 turns). Never use the shock coma, as it will make him recovering some focus (however, a stun effect will be applied and it costs nothing, but there's that damn cooldown).
A funny and cute break, relaxing. Just love the jazzy music, as for Little Wheel; 5/5 for the simplicity, showing that a game doesn't need at all awesome graphics and massive controls to be good.
Cannon + Laser + Rocket make a very powerful combo (explosion which creates missiles, and that missiles send lasers, the cannon must have the best range for it). Try it, it worth it.