Quelling Robe

Quell is a static ability that generates a fixed-prevention effect.

The prevention effect is optional. When the effect is applied, the controller chooses whether to pay the amount. If they do, the prevention effect reduces the damage, and creates a delayed triggered-effect that destroys the source object at the beginning of the End Phase.

If another prevention effect reduces a damage event to 0, the replacement condition is no longer met (damage would not be dealt), so Quell would not apply.

The prevention amount applies to a single damage event. The leftover prevention amount does not apply to any future damage that would be dealt to your hero.

If the damage prevention can not be applied due to an effect, the delayed triggered effect is still created as part of the replacement effect application and will still destroy the source at the beginning of the End Phase.