Shared Animosity

Whenever a creature you control attacks, it gets
+1/+0 until end of turn for each other attacking
creature that shares a creature type with it.
"The Twi'leks on that planet can't wait forever,
Master. The longer the Techno Union keeps control
of Ryloth, the more difficult it'll be to free them."
"I agree. We don't have much time."
- Anakin Skywalker and Mace Windu