The banned powers are technically for Asylums as they are far over powered and right now our Asylums aren't strong enough. But yes I adjusted deconstruction and reconstruction to reserved.
The power is standard but there can be various ways of using it. Healing can be used in a multitude of ways. You can boost your cell regeneration to heal wounds, you could use a powerful cast to supernaturally heal yourself, you could drain the life around you to heal yourself (taboo). etc
As for shadow teleportation and mirror teleportation, you are phasing in between realities. The implications are far greater, you could drag someone else into a pocket realm of shadows. Breaking through realty isn't possible for Asylums at a level 3.
Now say Sparks faces a rogue, they could easily fry their brain. They could use the electric signals that passes through the synapses to burn the brain, they could physically touch a person's head and fry it etc. But when faced with a tough enemy or another Asylum it won't be as easy.
Generally standard teleportation has a relatively short range and you are traversing through the same reality, you are merely willing your body to appear at a different location.
Let me give you an example of your own alchemy electric affinity. At a level 2 you can teleport in a completely different way. You can travel through an electric conduit. You can become an electric signal, travel through electric lines and appear out a television.
Now you may ask why waste a level 2 doing this? Well a level 2 cast is a little complicated. A level 2 cast is like a massive attack, think Goku hitting a spirit bomb, he has to channel energy. The difference you don't have to stand with your hands held high screaming for half an hour.
The energy accumulation is automatic and as it is accumulating your alchemic output is boosted as well, incredibly so. So you don't have to stand idle as your attack hits, you can assault the enemy with a barrage of over powered alchemic attacks as your final attack is prepared.
As for my post, I have an exam tomorrow and day after, so I will have my post up on Sunday.