If the spell or ability that's copied has an X whose value was determined as it was cast or activated, the copy will have the same value of X
One of many horror films based on the work of Stephen King, its about a malevolent being in a rural American town who makes children ritually murder their parents so that there can be a good corn harvest
Its token production is welcome, but hardly necessary when we have access to token production from cards like Saheeli, Sublime Artificer, Third Path Iconoclast, and Talrand, Sky Summoner
late game, it becomes a threat, especially when buffed by Mmmenon
This means that there are two states of Common Cause it does nothing, or it gives all (nonartifact) creatures on the battlefield +2/+2