Chrollo, Troupe Leader

Chrollo can use the activated abilities of all creatures on the field at any time
Other Troupe Members you control gain +3/+3 while Chrollo is on the battlefield
Chrollo gains +2/+2 for each troupe member in your graveyard
"I'm only a part of the Spider. What's important is the survival of the whole, not the individual."