Paul does not advise us to attack, but to stand.
If we think of "the devil" as spiritual darkness.. or as evil in the world..
WE can take a stand against it.
We can take a stand against Child Porn and Sex Trafficking .
We can take a stand against "powers and principalities" that promote turning a child into a Transgender "It", while denying the parent's have a right to stop this situation.
We can stand against 2 Gay men, adopting baby boys.
We can take a stand against '"no limits on" Abortion., or Abortion in General.
American Christians can take a stand against the Dem Party trying to replace them with Illegals, by Voting against it.
So, thats a small list, and behind all that, is the Devil...so, when we take a stand against so many evil situations, we are resisting Him... taking a Stand against Him.
What is the best means, to stand against the Devil?
Help someone find Christ.
Help someone who has be captured by a CULT theology.
Help build a NT bible believing church.
Support Missionaries
Give to a Good Ministry that is helping the Poor. I'd suggest The Billy Graham Ministry, if you are looking.