Wish - Yes/No - Wish kinda fits, and works to make it more of a utility, by healing your team members
Slack Off - Yes/No - Might make it slightly broken, and why Slack Off with Vital Spirit?
Block/Spider Web - Yes/No - Either one fits, it's a Spider, so Spider Web fits, and it can Block with all of it's hands.
Tailwind - Yes/No - Persistent boosts it, and I'd want to make a team utilizing it, but it doesn't have enough turns, I'd use it despite only one pokemon having Persistent to boost it.
Gravity - Yes/No - Reach in the sky, and pull them down with all 8 of your hands, that simple. Then just EQ or go to Garchomp, Rhyperior or whatever.
Heal Block - Yes/No - Stopping the opponent from healing is useful, and it works as a utility too.
Yawn - Yes/No - I'll just go with Yes, since it adds more of a utility feel to it, and provides support by putting opponents to sleep.
Will it have any chance of getting Trick Room, Taunt, Encore, Light Screen, Reflect, Safeguard, Spikes, Stealth Rock or Toxic Spikes?