Retired Hunter Djura

Vigilance

Retired Hunter Djura enters the battlefield tapped.
Every time a creature you control is killed or exiled, place an Insight Token on Retired Hunter Djura.
{T}{B} Deal X damage to all creatures controlled by opponents where X is the number of Insight Tokens placed on Retired Hunter Djura, then remove all Insight Tokens from Retired Hunter Djura.

But remember one thing, you're not hunting beasts, it's you, you're the beast, just think about what you're doing - it's utter madness.