[quote=craptonofgames]
A) Any situation that could be effected by magic (i.e. magic sensors or weaknesses to magic) this will count as magic, due to it being left unclassified as anything other than magic-like.B) Unfortunately, this tells me nothing about the strengths and balances for any of these effects.
[/quote]

alright well basically:

Ice: This allows Weiss to create either a ice wave or icelike spikes. She once encased a Deathstalkers tail in ice but it broke out. It would be inaffective against opponents who use heat based attacks tho. In the White trailer this was used against the knight.

Fire: Weiss can create a small wave of fire. inaffective against anyone using water based attacks. Tho from what i have seen in the show she did set a tree on fire so it can cause a fire to objects like wood.

Yellow: The speed enhancement allows her speed to slightly increase from its usual normal one. It allows her to move as fast as someone who can run quickly from place to place tho it is not like the Flashes. It gives her a brief boost tho she is quickly tired out when it wears off.

As of yet in the show the effects have not been used or elaborated on. In the trailer the purple effect was shown to deal a swift and quick blow to the knight that seemed to disorient it. So I'm assuming Purple would just cause injury to a opponent.

White was used to completely finish off the knight in the trailer.It is seen to be a fatal blow that could very well kill anyone. All it did was make the knight shatter after it was hit. Again this effect has not been seen in the show so I am going off what i have seen from the White trailer to explain Purple and White..