Serpentis Scale Shield

This shield is constructed from the shimmering scales of Serpentis Draconis, reflecting its serpentine nature. While wielding this shield, you gain a +2 bonus to AC. Once per long rest, you can invoke the protective magic of the dragon, granting you resistance to poison damage and advantage on saving throws against being poisoned for 1 minute. Additionally, if a creature attacks you and misses, you can use your reaction to retaliate by causing the ground in a 10-foot radius centered on you to become difficult terrain for that creature for 1 round.