Ber'grin,Who Is Without Mercy

Deathtouch Hexproof Reach Trample Menace Living Weapon Fear
Planesrunner( As long as this creature is on
the battlefield and under your control
Planeswalkers can't use any of their abilities)
Destroy target Legendary creature.
Nonlegendary creatures can’t attack or block
Ber'grin, Who is Without Mercy.
{p/b} Exile target permanent, it can't be
regenerated.
"What does mercy mean to a living machine?.....nothing"