Buttercup's Gift

Elementals you control have "At the beginning
of combat on your turn, create a 3/1 token that's
a copy of that creature. It gains haste, exile it at
the beginning of your next end step."
"As a thank you for your aid in our search for the
Cradle, please accept this token of my appreciation; I
think you'll find it to your liking."
-Letter to Amanzi and Umlilo, signed Lord Buttercup, Speaker for the Diamond.