Grimgubbler Scroll Runner

Haste
{1}{u},{t}: Create a Scroll token. (It's an artifact
token with "{2},{t}, Sacrifice this artifact: Scry 1.")
{r},{t}, Sacrifice a Scroll: Target creature gains
haste until end of turn.

The Grimgubbler runners are famous for their speed.
As well as their ability to grant it to others.