6 Aura Of Courage Equipment And Aura Voltron Aura of Courage is one of the precons released in Magic's first official crossover set with Dungeons and Dragons (though unlike later crossovers, it was with an IP owned by the same company)
Thrasios, Triton Hero - $5.89 This card is so great
Whether this is because of the format becoming more focused on low mana value cards or more answers existing to combat stolen creatures, I personally see this as a good thing
The offer itself seems trustworthy as well - from what I can tell, the user-reviews have all been very positive
That means it won't mutate, it won't be able to do anything but have an enters-the-battlefield effect or maybe make use of counters
As a result, when evaluating future Secret Lair drops, don't make the mistake of considering a Secret Lair foil to be similar to the card's original foil printing