Myrkhellir Helm

If you control a Gold, this gets +1

.

Action -

, destroy this: The next time you would draw a card from a Gold token this turn, instead draw 2 cards. Go again

Temper

Rulings

From the Compendium of Rathe release notes

If you control a Gold (including those that count as gold), Myrkhellir Helm gets +1. If you control a Gold when this defends, then you lose that Gold and control no other Gold, this will lose the +1 gained.
If a Gold comes under your control during the damage step and causes the if-conditional effect to become active, it will get the +1 from controlling it but the damage will not be recalculated.
When Myrkhellir Helm’s activated ability resolves, it generates a replacement effect that applies to the next time you draw a card using the Gold token’s activated ability this turn. If you were to draw a card from a Gold token while this replacement effect is active, you instead draw two cards.

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.