Supersets and giant sets work well for inducing metabolic stress, especially those that stress the muscle at different lengths.
Here's a skull crusher variation where I lower the bar to my nose for 10 reps, then to my forehead for 10 reps, then behind the head for 10 reps. Try it!
How does an advanced lifter build bigger arms? Is it even possible? It is. If you're an experienced lifter who hasn't seen arm growth in ages, here's what to do.