The Abzan avoid extended supply lines by incorporating weapons stores into their battle formations.

Armament Corps

When Armament Corps enters, distribute two +1/+1 counters among one or two target creatures you control.

The List

Khans of Tarkir

When Armament Corps enters the battlefield, distribute two +1/+1 counters among one or two target creatures you control.

The enters-the-battlefield ability can target Armament Corps itself.

You choose how the counters will be distributed as you put the ability on the stack. Notably, if you choose to put one +1/+1 counter on each of two target creatures, and one of those creatures becomes an illegal target in response, the +1/+1 counter that would’ve gone on that creature is lost. It can’t be put on the remaining legal target.