West-Wind Herald is a unit card.
How to Get Edit
|•||On Play:||"The west wind is warm with renewal."|
Copy West-Wind Herald with effects like Sunken Tower to reuse its ability. This can be potent with spells such as Mirror Image—by targeting West-Wind Herald with the replayed spell, you can do the same again the following turn with the copy's Infiltrate, creating a loop of potentially endless West-Wind Heralds.
West-Wind Herald's Infiltrate plays the spell for free.