[Variant] Emerald Caller (Patreon)

Dagger, rare (requires attunement)

This emerald dagger is a token of friendship from an old battle when a Horizon Walker Ranger called Thomas Oliver partnered with an Emerald Dragon to hunt down an ancient aberration threatening the material plane.

You have a +1 bonus to attack and damage rolls made with this magic weapon. The dagger has an intricate system that allows it to be used as a flute. The melody played by this magic weapon carries a promise that when needed, the Emerald Dragon will forever come to aid the holder of this emerald dagger against the perils of the Far Realm.

Emerald morphing. As an action, you can speak this dagger command word to summon a magic armor made of emerald and gold. The armor remains with you for 10 minutes or until you dismiss it. While wearing the Emerald Armor, your AC becomes 20. The item doesn't affect your AC if, without the armor, your AC is 20 or higher. Once you activate the Emerald Armor, you can't do it again until the next dawn.