Soulbond Resolve

When this defends, you may charge your hero's soul.

The first time you would be dealt damage each turn, if you've charged this turn, prevent 1 of that damage.

Temper

Rulings

From the Dusk till Dawn release notes

“When this defends” is a trigger when the card is added as a defending card to the chain link. It is optional, and you do not have to charge your soul to be able to defend with this.
Soulbond Resolve only prevents damage against the first time you would take damage each turn. If you’ve already been dealt damage during the turn, then charge, Soulbond Resolve will not prevent any subsequent damage that turn.

Keyword notes

Charge - Charge is a new keyword that exist on Light Warrior attacks. This showcases Boltyn’s eagerness to engage in battle and charge his soul in the process. As an additional cost to playing a card with charge you may put a card from your hand into your hero’s soul. This would turn on powerful effects that care about if you have charged this turn. (You may elect to not pay the additional cost of charge – however this would mean you did not charge.)

Charging is optional. You may play the card without charging.
You may only charge up to one card unless otherwise specified.
A card may not charge itself. (You cannot put the card you are playing, into your hero’s soul as a part of its own cost)
The charged card is put face up under your hero.
You are only considered to have charged if a card goes into your hero’s soul from a card with charge. Having a card go into your hero’s soul from another method is not the same.

All keywords

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.