If they don't counter it, they're probably sitting on a bounce spell or the dreaded Cyclonic Rift
All of that withstanding, while there are not a ton of MTG token doublers, the ones that do exist are extremely powerful
Extra turn spells can do something similar by connecting your upkeep to your previous actions
Get as many Elves out as you can, and swing in for victory with Overwhelming StampedeOverwhelming Stampede or Haldir, Lorien LieutenantHaldir, Lorien Lieutenants activated ability
Any effects that grant your equipped creature Double Strike, like Jin Sakai, Ghost of Tsushima, enable multiple triggers per combat
These enemy colors both had a striking similarity in the makeup of Mythics under $20