[All Your Pie]

Hmm, either of those could work, although the leaning algorithm angle could be difficult to implement cleanly. Taking another look at the figure, it's also undeniable that he's got some kinda blue cyber-energy radiating off his palm. I still think turning entire living entities into data is a bit of a stretch even for Cyberpunk, but it does afford us some more leeway than I initially suspected.

How about something like:

5L 5M 4R 3A 4D

Neural Stimulant
Before attacking with Jydel, you may place a wound marker on this card. If you do, add 3 to this card's attack value.

Brainjack 13
After taking a turn with Jydel, if he inflicted one or more wounds on a Unique Hero with his normal attack this turn, you may roll the 20-sided die. If you roll a 13 or higher, take temporary control of the figure he attacked and immediately take a turn with them. After the turn, control of the figure returns to the player that controlled it before the Brainjack.

This would be separate from the hacking/negation power with the marker, though. Alternatively, we could use that power along with some sort of cyber-barrier defensive power to make him more of an irritating/harassing figure.