Vulkan

Indestructible, vigilance
Promethean Creed — When Vulkan enters the battlefield, put a +1/+1 counter on each Astartes
you control.
Primarch of the Dragon Warriors — Whenever you
put a +1/+1 counter on an Astartes you control,
you may put a -1/-1 counter on target creature
you don't control.