I've nearly worked out the guards.
atm when someone using the summon guard spell a guard will spawn
it will not attack the caster and will only attack people flashing.
getting it to attack the casters target should be easy.
the hardest part is getting it to follow the caster.
also i found a bug with mine so far when if you try casting again it will spawn a invisible guard but i know why that is i just need to get round to fixing it