Bloodsilk Spiders's Empress

Bloodthirst 3,
Other Spider creature you control get Bloodthirst 1.
If a Spider creature you control deal damage to an opponent, you may put a +1/+1 counter on it.
The Ferocity of the Bloodsilk spiders come from their Empress, they only appear weaker than other Bloodsilk to deceive their prey and foes alike.