So, you trap him and try to drain his energy. He locks his energy so it can't be drained. There's always a counter to a counter, and that's where tactical advantages come in handy. Having the upper hand and disabling how the other one fights. Backing him into a corner so he can't counter your counter.. For instance, this is how I would do it:
1. Post with an attack which somehow makes contact with him physically (maybe I touch him with a hand glowing blue). This spell prevents his ability to lock energies inside him.
2. Ten posts later when hes forgotten about that blue hand I do the spell circle thing and drain the energy.
The point is, be ten steps ahead at all times and always have a plan. Never give your enemy the upper-hand.
Alright, so try again with a different example on how to kill Orph, only go more in dept and consider possible counters and eliminate them. Obviously you won't get all the counters, but eliminating some is enough.