about to fight the elite 4 in my Crystal Nuzlocke how fucked am I?

Crobat lv. 38
-Fly
-Confuse Ray
-Swift
-Bite

Pidgeot lv. 38
-Fly
-Sand-Attack
-Wing Attack
-Quick Attack

Stantler lv. 39
-Return
-Flash
-Hypnosis
-Stomp

Heracross lv.39 @Blackbelt
-Strength
-Rock Smash
-Horn Attack
-Take Down

Piloswine lv39 @Nevermeltice
-Earthquake
-Powder Snow
-Endure
-Strength

Tentacruel lv40
-Surf
-Supersonic
-Icy Wind
-Whirlpool

it really sucks that Heracross's only STAB is a shittier version of tackle, and maybe I should swap the nevermeltice onto Tentacruel since he has the better Ice move and a better stat to use it with

I'm especially worried about Lance and Will, since my team is weak to psychic and doesn't have a great answer to Dragonite outside of Tentacruel (and I'm pretty sure one of them is packing Thunder)