Each of the images is the artwork from a Magic: the Gathering card.
Each card name is also the name of a spell from Third Edition Dungeons and Dragons. (Third edition is also the only edition of D&D in which the spell Daze exists.) Indexing into the name by the level of the spell yields the answer TRISKELION:
nighTmare fiReball fabrIcate Sleep teleKinesis wEb walL of ice sIlence hallOw whirlwiNd