What is Piercing Wail?
Temporarily lowers all enemy Strength, helping against multi-hit or grouped attacks.
This reference covers gameplay decisions in the original Slay the Spire. Character-specific options and relic synergy can change how useful an item is, so consider your current deck, health, upcoming enemy and available resources before applying a strategy.
When and how to use it
Save for a dangerous multi-hit turn or several simultaneous attackers.
What to avoid
It does not replace a sustained Block plan against repeated damage.