Just so all of you know, Shadow Arm only costs 1 SP and Ghost Grab COSTS 0 SP.

Let's compare:

Tough Vine Trap SP: 0 DMG: 4 Stuck Duration: 1

Ghost Grab SP: 0 DMG: (Probably 4) Stuck Duration: 2

Conclusion: Please increase the SP cost of Ghost Grab.

Drain is a cool move to use so that is why I chose sleep or brutalize over ghost grab or shadow arm. Fury is cool and all but I feel like they could've replaced it with sleep, maybe even brutalize but that takes 4 SP. They might've made it 3 SP for us since it doesn't give enemies a ton of broken bones unlike bedrock to us. Sleep would be interesting to use, no SP and revives 5 hp, but are immobile for a turn. This could be for better or worse depending if an enemy/enemies target you and deal more than 5 hp.