Using this card allows you to fuel Savage King's effect, while further powering up your Units.
The availability of two different Draw triggers to the Tachikaze allows them to make more effective use of cards such as Archbird, making them a very efficient deck defensive-wise, while their powerful offensive Units push the opponent.
If you need to retire a Unit but do not have the damage to use one of the effects that return a Unit to the hand, consider sacrificing a Draw trigger such as this card or Herbivorous Dragon, Brutosaurus, as they have neither high enough Shield nor high enough Power to be vital to your hand or field.
Running this card in a Ancient Dragon, Magmaarmor deck allows you to power-up your rear-guards while fueling the resources you need for the revival. Since Magmaarmor doesn't need especial costs, running this card won't hurt the deck consistency.