There's scheming to be done!

You run through your options as the rain patters down, every so often hearing a terrified screech as the spiders come across a hapless imp. Most heroes used the roads so that would be your target. The canyon was the only "normal" way into the region, all others being through caves or hazardous mountain passes, so that would be a good **** point for hero harvesting. A quick word with a passing group of minions reveals most of your spiders spawned nearby, distanced enough from their hostile brethren to make them expendable. You had no use for minions who wouldn't die for the cause, if you were ever able tell them apart maybe you could even start issuing rewards.

A spider trap over the canyon? It wasn't a bad idea... though at least some of your targets would use fire and that was almost as bad for spiders as it was for you. News would probably spread fast too. They'd come prepared and your minions would die in droves. You needed to be nearby to back them up... and a combined use of your abilities would leave the heroes terribly confused. Toxic Pollen followed by webbing and a final killing blow? If you did it fast enough they'd never know what hit them, literally.

The canyon was a ways off though and you couldn't just go like you used to. Not to mention you'd be exposed no matter where you set yourself up, the immediate area around the canyon was almost bare. A less traveled side path was currently within reach of your tendrils, it might be preferable to set up there and keep a lower profile. If you were going to move out, this would be the time, the rain would help cancel out any damage you took by uprooting yourself.