Lady Jessica, Bene Gesserit

Creatures you control get +1/+0 and have
vigilance as long as you control three or more creatures.
Creatures you control also get +1/+0 and have
trample as long as you control six or
more creatures.
Creatures you control also get +1/+0 and have
double strike as long as you control nine or more creatures.
Jetmir, Nexus of Revels (Cat Demon)