The villains in this product are no exception, and the villainous choice mechanic can force your opponent to make exactly these kinds of decisions
This means that there are two states of Common Cause it does nothing, or it gives all (nonartifact) creatures on the battlefield +2/+2
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
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
Then the +1/+1 countering can really work nicely in a deck that goes wide like aggro and tokens and counters matter
This list has a solitary wrath in Wave Goodbye that ignores your permanents and destroys your opponents