Vast: The Crystal Caverns – Silver Gauntlet Promo Card

This was a promo card obtained at GenCon 2016. It was later made available in the "Bonus Cards" expansion.

Text:

"+1 Strength during your turn only. If you attack a Goblin Tribe, they discard 1 Secrets card. If you hit the Dragon, it discards 1 card. If you smash a Crystal, the Cave discards 1 Omen. If you kill the Thief, gain 2 extra Grit."