Are there any magic items in 5e that will cast Pass Without Trace?

Question

I've been looking for a way for my Assassin Rogue 12/War Domain Cleric 2 character to be able to cast Pass Without Trace, so they can more easily not abandon the party and still get surprise. Getting that surprise round is the goal, so if you have another way we can do it, that'd be great. Our party does not have a druid or thief rogue, so unfortunately we cannot use the Staff of the Woodlands, which would otherwise be perfect because, well:

You can also use an action to cast the Pass without Trace spell from the staff without using any Charges.

Anyways, Does anyone know of a similar magic item that will allow us to cast pass without trace? Or an alternative way to gain surprise on our enemies other than stealthing into each room?

Answer 1

There is only one other non-homebrew item, but you are not likely to come across it; the Infiltrator’s Key.

While holding the key, you can use an action to cast one of the following spells from it: alter self, invisibility, knock, or pass without trace. Once a spell has been cast using the key, it can’t be used to cast that spell again until the next dawn.

Unfortunately, it is a Legendary item so it would be hard to come by. Moreso, it only appears in the Explorer's Guide to Wildemount supplement making it even more rare. It still requires attunement, but it can be with any class.

Answer 2

Adding on to MivaScott's answer, a Ring of Spell Storing might serve your purpose.

Ring of Spell Storing

This ring stores spells cast into it, holding them until the attuned wearer uses them. The ring can store up to 5 levels worth of spells at a time. When found, it contains 1d6 - 1 levels of stored spells chosen by the DM.

Any creature can cast a spell of 1st through 5th level into the ring by touching the ring as the spell is cast. The spell has no effect, other than to be stored in the ring. If the ring can't hold the spell, the spell is expended without effect. The level of the slot used to cast the spell determines how much space it uses.

While wearing this ring, you can cast any spell stored in it. The spell uses the slot level, spell save DC, spell attack bonus, and spellcasting ability of the original caster, but is otherwise treated as if you cast the spell. The spell cast from the ring is no longer stored in it, freeing up space.

Thus, your DM could create a Ring of Spell Storing with Pass Without Trace stored in it, allowing you to cast the spell. The ring can store a maximum of two Pass Without Trace spells and one other level one spell.

Should you need a recharge, your DM might allow an NPC in town to cast that spell for you to store.

Discuss with your DM