The Slayer

Haste First Strike Reach Fear Intimidate
Lifelink Hexproof Living Weapon
Whenever The Slayer becomes blocked by a
nonlegendary creature, destroy that creature.
It can’t be regenerated.
The Slayer attacks each combat turn if able.
If a creature would deal damage to you or
another permanent you control, prevent
that damage.
If a creature you control would deal damage
to an opponent or a permanent an opponent
controls, it deals that much damage plus 3
instead.