Spiritual Guidance

Materialize {4}{b} (You may pay an additional {4}{b} as you cast this spell. If you do, put it onto the battlefield as it resolves and it becomes a creature.)
You gain life equal to the number of legendary creatures in your graveyard.
If you paid Spiritual Guidance's materialize cost,
it enters the battlefield as a copy of target
legendary creature in your graveyard except it's a Spirit in addition to its other types.