Valkyrion, the Magna Warrior

Sacrifice an Alpha, the Magnet Warrior, a Beta, the
Magnet Warrior and a Gamma, the Magnet
Warrior: cast Valkyrion, the Magna Warrior from
your hand without paying it's mana cost.

Sacrifice Valkyrion, the Magna Warrior: put an
Alpha, the Magnet Warrior, a Beta, the Magnet
Warrior and a Gamma, the Magnet Warrior from
your graveyard into the battlefield.