Light reflects from this tiny, dark, three-tined amulet like the full moon shining on a tranquil swamp.

A heartseeking amulet allows your weapon to pierce armor and scaled hides as if they were air. When you activate this amulet, the next melee attack you make is made as a melee touch attack instead. If you don’t make a melee attack by the end of your turn, the effect is wasted.
A heartseeking amulet functions three times per day.

Lore: Many sunsets ago in the swamps of the lizardfolk, the Lizard King battled the Lava Children. Though he pierced them repeatedly with his trident, they were immune to the metal of his weapon; it passed through them as if they did not exist. Eventually, he drowned the Lava Children’s champions in brackish pools and drove their menace back into the magma bowels below the Geyser Fens (Knowledge [history] DC 15).
Eventually, he was able to imbue his own trident not just with the ability to ignore metal but also to pass nearly all physical defenses. Today that secret has been replicated in the tiny amulets that resemble his mighty weapon (Knowledge [history] DC 20).

Prerequisites: Craft Wondrous Item, true strike.
Cost to Create: 1,500 gp, 120 XP, 3 days.