Kaldana the Betrayer

Bloodborne (When Kaldana the Betrayer enters the
battlefield, you may exile another creature you control.
If a creature card with first strike is exiled this way,
this creature gains first strike. The same is true for
deathtouch, haste, lifelink, and menace.)
All other creatures lose all keywords that Kaldana
the Betrayer has.
"Blood for blood."