Kindle-Spark, the Risen

When Kindle-Spark the Risen enters the battlefield, mill 5 cards
At the beginning of combat on your turn you
may return a creature card with toughness less
than or equal to Kindle-Spark the Risen's
toughness to the battlefield. It gains haste until
end of turn and "exile this creature at the next
end step unless it has trample, otherwise sacrifice
this creature instead"