Bloodrush Guardian

Battle rush (At the beginning of each combat, you
may put a +1/-1 counter on this creature.)
Companionship {w} (Whenever another creature enters the battlefield under your control, you may
pay {w}. If you do, put a +1/+1 counter on that creature, and a +1/+1 counter on this creature.)
There is no pain like the pain you're about to feel.