Some ideas
Aural Blast
Psychic Special move
175 Power
85 accuracy
5 PP
The user cannot move on the next turn.
Learned by: Riolu, Lucario, Alakazam, Mewtwo.
Sonic Wave
Normal type move
75 Power
100 Accuracy
20 PP
This move has a 50% chance of flinching or paralyzing the opponent.
Learned by: Magnemite, Magneton, Magnezone, Noivern.
Mucus Drench
Poison type
80 Power
95 Accuracy
15 PP
Has a 35% chance of poisoning or paralyzing the opponent. Power doubled if target is already poisoned, paralyzed or burned.
Learned by: Croagunk, Toxicroak, Cubchoo (egg move), Grimer, Muk.
Halving Chop
Fighting type
— Power
100 Accuracy
25 PP
This move halves the current HP of the opponent. Strengthened by Iron Fist (if it has Iron Fist, this move is a one hit KO).
Learned by: Hariyama, Machoke, Macham, Hitmonchan, Croagunk, Toxicroak.
Venom Punch
Poison type
70 Power
100 Accuracy
20 PP
This move has a 30% chance to poison the opponent. Power boosted by Iron Fist.
Move could be learned by: Croagunk, Toxicroak, Hitmonchan, Pangoro, Muk.
Wingshield
Flying type
— Power
— Accuracy
15 PP
Has the same effect as Protect and Detect.
Learned by: Skarmory and other Flying-types.
Well, overall, some ideas are good, but they are totally unbalanced.
Aural Blast -> Hyper Beam has 150 BP and 90% accuracy. The 5% drop in accuracy is insignificant in regards to the 25 BP upgrade. I don't think GF would make a clone move significantly better than the rest, so unless they change hyper beam and the rest, it doesn't really make sense. HOWEVER, I'd really be for a hyper beam and cie. upgrade, considering they were good in gen I and maybe gen II as nukes, but now, we've been getting many more boosting moves, high damaging moves without a charging turn, etc. I think they should all be upped to 170-180 BP.
Sonic Wave -> I assume it works like tri attack, with paralysis or flinch having each a 25% chance of occuring. While none of the Pokémon who would get it get STAB, I think that might be too much considering body slam, air slash, etc. all have a 30% chance of either flinching OR paralysing (without the other having a chance of occuring). If you want both, I'd lower the odds to 40%, so that each have 20% chance of occuring. That said, I really do think a move named "Sonic Wave" should be flying type and be a 40 BP special priority move. There's a big lack of special priority move, and this would be the perfect opportunity to introduce one that is accessible (because there's already water shuriken, but only for Greninja).
Mucus Drench -> So that's basically a "reverse" poison type Facade. The problem I have here though is that venoshock is already a move that doubles its power only on a poisoned target, and it has a 65 BP. This move has 15 more BP, works on any status ailment besides freeze, AND can even cause those status ailment. That's way too much. What I think would be a great idea, however, is if its secondary effect was that it heals the poison status and induces paralysis if the target is poisoned, still with a 80 BP and 100% accuracy instead. Or the opposite (heals paralysis and causes - bad? - poison).
Halving Chop -> Nope. That's totally ridiculous. Do you realize just how broken this would be on a scarf hitmonchan? Fixed damage moves like this aren't boosted by abilities and for good reasons.
Venom Punch -> Great idea. But I feel like that's too much like Poison Jab when boosted by Iron Fist (only 84 BP). I'd up its base BP to 75 to be on par with other punch moves.
Wingshield -> I would not just give it the same effect as Protect and Detect, since that's completely useless and the new protection moves GF has introduced all have a gimmick effect (halves attack of the opponent, poison the opponents, deals 12% recoil, etc.). The name is pretty neat however. As a potential effect, I'd have it deal 12% recoil to the opponent if it uses a non contact move - basically working like this "wingshield" was throwing back the attack at the opponent.