Cursed Weaver, Silky Arachne

Reach, Silkweave {8} (Once per turn, during the
pre-combat phase, {x} permanents gain a Web Counter. Target opponent may pay {x} to negate
this ability, but, Spiders you control cannot be blocked this turn.)
When Cursed Weaver, Silky Arachne enters the battlefield, other Spiders you control gain +1/+1 for each permanent with a Web Counter on them.

Abilities that add a Web Counter do not target if you control Cursed Weaver, Silky Arachne.