Awaken the Guardian

Put target creature card from your graveyard onto
the battlefield under your control. That creature
is a Skeleton in addition to its other creature
types.
Settra became obsessed with unlocking the secrets of immortality so that he could rule over his lands for all eternity. In his quest for everlasting life, Settra founded
the Mortuary Cult and demanded that his wisest and
most powerful priest devote their efforts to discovering
the secrets of preventing his passing.