Growing Threat

Phyrexia

Disrupter - Enhanced Deck

Assassin

Assassin - Enhanced Deck

Phyrexian Assault

Phyrexian Assault - Enhanced Deck

Bone Shredder

Flying
Echo {2}{B} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters, destroy target nonartifact, nonblack creature.

Flying
Echo {2}{B} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Bone Shredder enters the battlefield, destroy target nonartifact, nonblack creature.

Flying; echo (During your next upkeep after this permanent comes under your control, pay its casting cost or sacrifice it.) When Bone Shredder comes into play, destroy target nonartifact, nonblack creature.