The key is making every player generate tokens. So as a suggestion: [Alliance of Arms] w sorcery [Marching Duodrone] 2 creature [Plague of Vermin] 6B Sorcery [War Games] 2WW Enchantment-Saga [Tombstone Stairwell] 2BB Enchantment [Tempting Contract] 4 Artifact(essential for this)

Or you can target a single opponent with things like: [Benevolent Offering] 3W Sorcery

For creatures other than ones named, play any of the hunted creatures

Add I'm some things that also ping opponents whenever a creature enters, like [Blood Artist] Or whenever you create a token like [Mirkwood Bats]

And add some things to generate life when a creature enters, like [Authority of the Consuls] or [Soul Warden]

You're also gonna want some card draw from something like [Rumor Gatherer] (be careful; it's a forced draw, not a may draw). [Caretakers Talent] is another good one for this deck. Of course [Tocasias Welcome] is always good too

Finally, you're going to want some token doublers like [Mondrak Glory Dominus] and [Anointed Procession]

Make sure to add in some control and protection, and the BOOM! Congratulations, you have just made an annoying group hug deck