GE U25B

When GE U25B deals combat damage to a player, they may pay {1}, if they do not, put a +1/+1 counter on GE U25B.
Unlimited bulk-2 {1}{b} (If a train with bulk
has a +1/+1 counter and you pay the bulk cost, remove the +1/+1 counter and create two tokens that are a copy of this creature.)