Solemn Simulacrum has seen play throughout its many lifetimes in Standard, however, the last time it was printed it only saw play in fringe ramp decks
While hes missing chilidogs (seriously where is that food token), Sonic here is in Jeskai (blue/white/red) colors and rewards having creatures with haste or flash by growing them
Look at what else they are selling
You can also opt to use Team Rocket Grunt, as lucky flips can allow you to remove all of Lickilicky ex's Energy at once
An opponent might get out a first turn Jackal Pup, follow it with a second turn Dauthi Horror, and cap those off with a Mogg Fanatic and Dauthi Slayer on turn three, but your third turn Propaganda would ensure that you didn't take a full seven damage to the noggin on turn four
A common choice is Tormod, the Desecrator, or Desecrated Tomb, which create tokens when a creature leaves the battlefield