Not sure whether somebody already mentioned it but as far as I know the following is wrong:
Cheap Rank 1 instants (SW: Pain and VE) allow us to kill Grounding Totems
A Dot like SWP and a simple magic effect like VE both do NOT destroy a grounding totem, instead you will get an immune message if I recall it correctly and nothings got changed here.

Sorry if am wrong here.

Xorn