D&Dtools

When you cast this spell, you and one willing ally trade
positions. If you occupy different spaces, the smaller
of you must occupy at least one square previously
occupied by the larger, the larger creature’s new space
must completely cover the space previously occupied
by the smaller, and you must start and end adjacent
to each other.
Your ally gains a +2 sacred bonus to AC and on saves
for 1 round, and you gain a +2 sacred bonus on a melee
attack roll you make in the same round when you cast
the spell.