DiabloFans

Well... those who played the expansion to Diablo I (Hellfire) will remember the "runes," which in that game were traps. They looked like little multi-sided dice, and spikey stars and such, and when monsters got close to them, they released one charge of a given spell. I'm guessing that that is what's going on in the first picture. The wizard threw down two lightning "runes" (which will obviously not be called runes), and hit wave of force. That would explain what those two spikey things are, and how she was able to cast two spells at the same time. This would actually mean that the lightning isn't even a "spell," and would imply that anybody could use that tactic.