Test Icons:

Mientras tengas un total de 5 o más de salud y cordura restantes, Inquebrantable obtiene , o bien mientras te quede un total de 10 o más de salud y cordura restantes.

Hay una fina línea que separa la valentía de la necedad.
Dani Hartel
El Círculo Roto #22.
FAQs (taken from the official FAQ or FFG's responses to the official rules question form)
  • Q: How does this skill work in combination with the ally Yaotl (which has an ability that gives you skill boost based on the number of matching icons on the top card of your discard pile)? A: The abilities on skill cards are only active while they are being committed to a skill test, unless otherwise specified. In this case Steadfast will only have its printed icons while it is in your discard pile, hand, or any other state other than while it is being committed to a skill test. (This includes an effect that says something like "discard a card from your hand with at least X icons...")
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Together with Able Bodied, this is one of the better Circle Undone skills. All current investigators will get the full bonus early in the game, which helps enable successful skill tests before the investigator’s major assets are in play. A combination of this and Take the Initiative would be solid protection against enemies and treachery cards.

jmmeye3 · 94
Funnily enough, playing this on early treacheries will likely make the second copy better, since you'll be healthier than if you'd saved it. — SGPrometheus · 125