Sadly, there really isn't anything to this trick
The Main Phase is where you take all of the actions during your turn
And it is powerful enough that it will be able to affect any game of Magic that it could theoretically appear in, not just games where it is on the battlefield
At the end of the day, its just sitting down and playing with new faces in a more structured format, and sometimes you may even leave with some new and shiny cards
Arguably the best 4-ink character, The Matchmaker Unforgiving Expert destroys a lore for every challenge she makes, not every banish
Put these two things together, and the most obvious answers are Uro, Titan of Natures Wrath and Kroxa, Titan of Deaths Hunger from Theros Beyond Death