This suggested to me that he also had Terminate, which I would need to save my Gurmag from if I had any hope at winning that game (I had no action to my opponents multiple cards in hand + Raging Ravine on board)
All of them have obvious roles, such as sacrificing for a land, cards, or killing a dork
This card showcases Tyme in her elegant attire, with a serene expression that reflects her calm demeanor in the games
According to the Baldurs Gate 3 wiki, Shadowheart is a Half-Elf and a Trickery Domain Cleric, which gives your party heals, buffs and interesting stealth and deception spells. The card plays a similar role in Magic, but at the expense of your other creatures
You can see how that would be a killer card in an Enchantment-based deck