Does the target symbol at the end of a description just indicate that the spell or ability requires a target?
Also, if a card does not have a target symbol nor states it is targeting a thing than does it count as a type of global effect?
Take for instance the black deck’s Plague Lord. He does a blanket effect of -1/-1 on each opposing unit and hero. This is not a target effect because the card does not say so or imply it with a target symbol. Therefore when playing against the blue deck illusions they do not die from being targeted. Is that correct?