I was trying to figure out the best way to (succinctly) write that the destination space for the unit moving next to the Magnetized unit must be capable of attacking in order for it to work -- so if a Dryad moves next to a Magnetized unit, for example, it will not take the Magnetized unit, because it is not capable of attacking. Likewise, a Warrior+++ moving to one of its Move-Only spaces next to the Magnetized unit also will not attack, even though it does have Move-or-Attack abilities.

I originally had it as an ability that could target allies or enemies, but then I thought that that might be too strong for defence.