Wisps fire on activation
What changes
Each surviving Shoop wisp joins the next activation. The newly created wisp also fires during the use that creates it.
How to approach the setup
Keep Shoop da Whoop! combined with the book. Line up a safe firing lane before activating it, and watch the next charge rather than expecting constant wisp fire.
A practical suggestion for this pair. Check the rest of your inventory and the room before relying on it.
The caution to remember
These wisps do not attack just because you hold the normal firing controls. Their extra beams still need a charged activation and a target in their path.
What this teaches about a run
An active-specific wisp can follow a different firing rule from the familiar-looking blue wisps. Learn its trigger before judging its contribution.
Other reviewed pairings
Book of Virtues + Yum HeartUsing Yum Heart with Book of Virtues creates heart-shaped wisps alongside its healing.Book of Virtues + Prayer CardPrayer Card creates white heart-shaped wisps whose tears behave like Sacred Heart tears.Book of Virtues + Unicorn StumpUnicorn Stump creates rainbow wisps that can deal contact damage while Isaac is invulnerable.