Icicle Mines I doubt. The projectiles are fire all at once, so are subject to shotgunning rules.
I tested EoW and Nimis last league. It was not consistent. Since it's a dissipating projectile, you need to give it a ton of proj speed so that it end of flights before dissipating. The problem, I think, is that makes the main orb travel much farther as well. Thus, secondary projectiles were being spit out much close to the server "non calc" bubble around the character. Either way, I couldn't get some combination of proj speed that would make them return with reliability.
Never tested worb, who the fuck knows with how borked vengeant cascade is.
Note, just about everything with Nimis needs to be retested. Fireball no long explodes, just keeps on going...