Powerlinking takes on different forms depending on if you are dealing with a Bulk or Mini. With Bulks, it simply is wearing another as a suit or sharing half a body. I believe your terms would include it as a sort of Combiner.

With Minicons the situation is less mutual. Megatron has been known to force Minicons into their alt mode so he may attach them to his body and drain their energy for his own. He is also known when he comes across a Minicon who doesn't fit his standard to reformate entirely so they better attach and output power.

He has done this to my Minicon partner, Sparkplug, on more than one occasion... [ Optimus' voice gives into a dark anger there for a brief moment. ]

I do not want the same fate to befall anyone here.