you could just roll on the ker-zombie table, we have at least one of those kicking around somewhere. Because the three basic elements of a minifig are legs, head, and torso, I would say that they are the equivalent of 3 bricks if you wanted to use a matter creation spell or something.
If you choose to revive a deceased unit, you may not reattach severed limbs. You may not roll on the table unless the unit you are trying to revive has at least a waist, torso, and head (missing legs, arms, and hands are ok though)
Ker-Jesus Table
1 - The dead body explodes in a shower of gore. Separate all the remaining minifig parts and scatter them around the battlefield
2 - Unit becomes a zombie for the duration of the spell
3 - Unit becomes a zombie for the duration of the spell
4 - Unit becomes a zombie for the duration of the spell
5 - Unit becomes a zombie for the duration of the spell
6 - Unit is successfully brought back to life with no ill effects.
a few notes on summoned zombies (not the same as viral zombies):
-whoever cast the spell that creates the zombie is it's master
-if the master is killed, the zombie will stay where it is and make an attack roll on
any unit that comes close (except maybe other zombies)
-the only way to kill a zombie with a weapon is to roll a critical success on an attack roll (boom, headshot)
-zombies cannot use weapons of any kind
-zombies attack by biting other units, this attack does 1d6 damage
-because they are not infected with a virus, there is no danger of turning other units into zombies