Yoxvos, The Great Webweaver

Other spiders you control get +1/+1
Whenever a spider enters the battlefield under
your control, create a 1/1 green Web creature
token with: "When this creature enters the battlefield, tap target creature an opponent
controls until this creature leaves the battlefield."
Spiders you control have: "{t}: This creature deals damage equal to its power to target tapped
creature an opponent controls."