Your death attacks cause your victims to become your undead servants.
Benefit: When you slay a creature with a death attack, you can cause that creature to immediately reanimate (as if you cast animate dead on it) by making a successful Spellcraft check with a DC equal to 10 plus the creature’s HD. You do not need to have the spell prepared for this effect to occur, but you do need to either know the spell or have it scribed into your spellbook (for arcane casters) or have it on your spell list (for divine casters) and be high enough level to cast it. Undead created with this ability do count against the total HD of undead you are able to control, but you may control an additional 2 HD of undead with animate dead per level of assassin you possess.
Undefeatable: The Collected Feats Sourcebook, Copyright 2009 – 2010, Louis Porter Jr. Design, Inc. Undefeated, Copyright 2011, Louis Porter Jr. Design, Inc.