Improving Pokemon: New Moves Challenge - Bug Type

Continuing my ideas for how to improve Pokemon, I'm taking a self-imposed challenge to come up with ways to improve each of the currently existing 18 types in the game without altering the type chart in any way. What follows is a list of moves that I think would benefit the chosen type and create new strategies for already existing Pokemon without being overpowered. Without further rattling on, today I will focus on the Bug-type.

• Cocoon (Status, 100% acc)
• Description: The user wraps themselves into a cocoon, doubling their base defenses but halving their attack stats. Until switching out, the user effectively has double Def and double SpDef while having half Att and half SpAtt.
• Distribution: Any of the "pupal" Bug-type families can learn this during their middle stage (Kakuna, Metapod, Spewpa, Charjabug, Swadloon, Whirlipede, Silcoon, Cascoon). A few others, like Volcarona and Venomoth, can get this through breeding. Any Bug-type that isn't a moth/butterfly can't have access to this move.
• Rationale: This gives all of the "butterfly" Pokemon a viable defensive option. Pokemon like Dustox become much better at taking a hit, Eviolite Friend Guard Spewpa starts to look like a serious option, and Volcarona has multiple chances now to Quiver Dance again and again.

• Molt (Status, 100% acc)
• Description: The user unravels their cocoon, restoring health and returning their stats to normal. Ends the "cocoon" status and resets stats, but also recovers status effects while restoring 50% max HP. Fails if the user is not under the effects of Cocoon.
• Distribution: Anything that can learn Cocoon.
• Rationale: In conjunction with effectively using Cocoon, this could be deadly. It gives a huge healing option to Pokemon that don't have one and allows smart players to "reset" their Bug-type to full health if used correctly. This could be extremely dangerous if used on, say, a Pokemon that abused Quiver Dance while under the effects of Cocoon, but considering that you used 3 move slots to Cocoon>Quiver Dance>Molt, you better hope that last move slot has coverage enough to sweep your opponents. Still could make some Pokemon much, much better.

• Skitter (Physical, 55bp, 95% acc)
• Description: The user moves weirdly to tackle the target. Deals damage and has a 50% chance to raise Speed +1.
• Distribution: A handful of "weaker" Bug-types and Pokemon with "creepy movement." Pokemon like Surskit, Spinarak, and Durant would be the flagships for this move. Pheromosa would never get this, even though it makes sense. I could see Pokemon like Spinda, Mimikyu and weirdly Gastrodon getting this, however.
• Rationale: Bugs basically having a "Flame Charge" would be a nice addition. Helps some of those Bug-types that are just slightly too slow to make an impact, like Masquerain, while giving Pokemon like Ariados options (because that thing seriously needs more options. I just learned it doesn't get any of the "fang" moves, even Poison Fang!).

• Spider Fang (Physical, 90bp, 100% acc)
• Description: The user sinks their teeth into the target, releasing powerful neurotoxins that may cause Paralysis (30%).
• Distribution: The spider lines (Spinarak, Dewpider, Joltik). Also Skorupi and Venipede.
• Rationale: Speaking of giving Ariados options... Giving certain Bugs the ability to cause multiple statuses would be a welcome addition. I think Ariados in particular would appreciate now being able to cause Poison, Confusion or Paralysis. The others wouldn't mind new, physical Bug-type options either and may even be able to abuse the Paralysis pretty well (looking at you, Scolipede).

• Silk Shot (Special, 95bp, 90% acc)
• Description: The user fires a wad of sticky silk at the target. This has a chance to lower the target's Speed -1 (30%).
• Distribution: Most Pokemon that learn String Shot
• Rationale: Bug needs a Special attacking option that isn't Bug Buzz or Signal Beam, and I think this fits the bill nicely. It would be decently distributed, won't suffer the weakness to Soundproof that Bug Buzz does, and has a nice chance to procc a Speed drop on the target. All around a decent alternative to what currently exists.

• Blight (Status, 100% acc)
• Description: The user creates a disturbance on the field, disrupting any active terrains and canceling them immediately.
• Distribution: All of the "pest" Pokemon. Bug-types like Shuckle and Paras make sense here. I could also see the Rattata, Trubbish, and Foongus lines getting this.
• Rationale: Terrain can be centralizing in the current meta. Why not introduce a way to halt it, similar to how players can stop hazards or weather? This wouldn't be a widely distributed move, but it would spread around to enough Pokemon that it would bolster their usage in support roles.