When The Bear Force Pilot Runner enters, create a 0/0 colorless Vehicle artifact token with flying, "This creature gets +1/+1 for each Bear you control," and crew 2.
Ready to run (You can have two commanders if both have ready to run.)

MR 9/19: So you're saying your plan is to errata a previous Unknown card to have this new mechanic now? Will they even notice? GV 9/23: Don't worry, I'll fix it in the flavor text.