Ironfist Revelation

When this defends, you may turn a face-down card with crush in your arsenal face-up. If you do, put a +1

counter on it.

Temper

Rulings

From the Super Slam release notes

Ironfist Revelation’s first ability triggers when it becomes a defending card on the combat chain. This is an optional effect: you choose to turn face-down card with crush in your arsenal face-up when the triggered effect resolves. If you do, you will put a +1 counter on it.
When resolving Ironfist Revelation’s triggered effect, there is no priority between any of the effects generated (e.g. turning a face-down card with crush face-up, putting a counter on it).

Keyword notes

Temper - Temper is a new keyword that exists on equipment in Crucible of War. Usually high in defense, Temper equipment presents a choice when it is down to 1{d}, of whether to defend with it one last time and see it destroyed, or save it to use for its ability.