This is a new expansion pack for the Sorcerer game published by Wise Wizard Games (formerly White Wizard Games).
It is a Lineage Pack: Sword of Gabriel. It is a Kickstarter exclusive pack published in conjunction with the Endbringer expansion for the game.
From the publisher:
Play as the Thaumaturge and let divine light bolster you and your minions! You'll accumulate light counters on your skill card, then spend them to play miracle cards. Light counters on minions bolster them in battle.
This pack is a complete Lineage Deck for use with Sorcerer, containing the Thaumaturge lineage skill card, 8 light counters and 20 cards for your grimoire.
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Shipping combined for multiple purchases. Delivery confirmation included on all domestic packages.