Sauron, Wraith Lord

{w}: Put a shadow counter on target creature. For
as long as that creature has a shadow counter on
it, it’s a Wraith in addition to its other types.
{3}{b}: Until end of turn, if target creature with a
shadow counter would die this turn, return it to
the battlefield tapped under its owner's control.
{r}: Wraiths you control gain +1/+0 and
first strike until end of turn.