Sophonisba, of Fervent Growth

Whenever another nontoken creature enters the battlefield, that creature's controller may pay {1}. If they do, they create a token that is a copy
of that creature. It gains haste. Exile it at the beginning of the next end step.
{1}{w}{u}: Exile another target creature, then return
it to the battlefield tapped under its owner's
control.
"Soon, all the world will know plenty, and we will
dance forevermore."