Sorrowful Protector

Empathy - Whenever another creature you control dies, you may put a +0/+1 counter on Sorrowful Protector.
At the beginning of each end step, if Sorrowful Protector has 5 or more +0/+1 counters, exile it.
"I fight with the strength of those who have fallen before me, but I fear the burden of their loss weighs
too heavily upon my heart."