Can a grung druid use their Poisonous Skin trait during Wild Shape?

Question

The Grung player race (from the One Grung Above supplement, released to raise funds for Extra Life) has the Poisonous Skin trait:

Any creature that grapples you or otherwise comes into direct contact with your skin must succeed on a DC 12 Constitution saving throw or become poisoned for 1 minute. A poisoned creature no longer in direct contact with you can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

You can also apply this poison to any piercing weapon as part of an attack with that weapon, though when you hit the poison reacts differently. The target must succeed on a DC 12 Constitution saving throw or take 2d4 poison damage.

My questions:

1. If I (as a druid) Wild Shape into any creature with skin, is that enough to make me "physically capable" of using the Poisonous Skin feature?
2. If I Wild Shape, do my natural piercing weapons (such as Bite) qualify as weapons for the purpose of applying the poison to an attack?

A RAW answer is strongly preferred.

Answer 1

No, not unless your new shape is physically capable of producing poison.

You retain the benefit of any features from your class, race, or other source and can use them if the new form is physically capable of doing so. However, you can’t use any of your special senses, such as darkvision, unless your new form also has that sense. -pg67 PHB

You may, for example, be able to enter into a Barbarian's Rage, or attempt a Fighter Manuever. However, this is a physical trait, similar to darkvision, so unless the new form also has the trait, you do not benefit from it. You may have skin, and your new form may have eyes, but your skin does not become poisonous, and your eyes do not gain darkvision.

Answer 2

Ask your DM*

^{* And hope they don't have a bias against amphibians}

As the Grung is not an officially released race, it is not clear how it interacts with class features and may not be fully baked. While you can look at the rules to try and parse how this works, the fact that we don't fully understand the initial poison mechanics of the grung makes it hard to give a rules-based answer as to whether or not it would work. A lot of this is because the Grung race itself seems like it's more homebrew - but the real issue is that the race doesn't describe how that mechanic works fully enough to rule on (which may be an issue stemming from it's creation.)

The following is from its description on DMs Guild (emphasis mine):

Summaries of the characters from the new Twitch streamed game in all their glory, plus the officially UNOFFICIAL grung traits used to created them...

Disclaimer: Outside of a certain surrogate character, this document in no way makes grung a legal, playable race in the D&D Adventurers League, or any other campaign where the Dungeon Master hates amphibians with an excess of apostrophes in their names… and yes if you’re not immune to poison and you must touch the grung to heal it… you get to make a saving throw.

If you're the DM, you should consider in deciding as to whether or not the thing that makes the Grung poisonous is available in its wild shape form. Not necessarily how it delivers it, but how it produces the poison.

If you and your DM thinks it makes sense, then roll with it. If not, then don't.

The race is from a twitch event

The Grung was created for a twitch event by WoTC and was released as a supplement to Tomb of Annihilation whose sales would benefit ExtraLife. They seem to go out of their to state this is far from official, but in a very tongue-in-cheek way.

The creation of the race seems to have been for this event and their clarification on it's level of officialness and lack of detail makes it difficult to review the race in terms of currently existing rules. Because this sits outside the official rules, it will very much be up to the DM to decide how and if this interaction will work (and if they'll allow this race at all.)