Gundan, Legion of Souls

If a soulshift ability of a creature you control triggers, you may return any number of target
Spirit cards with total mana value less than or
equal to the soulshift value from your graveyard
to your hand instead.
Sacrifice three Spirits: Return Gundan, Legion
of Souls from your graveyard to the battlefield. Activate only as a sorcery.
Soulshift 5