The Executioners Blade

Equipped creature has deathtouch and the following ability :
Blood Thirsty - Whenever this creature destroys another creature put a +1/+1 counter on this creature.
Equip: {2}, Pay 3 life
The Chosen One-If this equipment is attached to “The Executioner” it gets the following ability: Whenever this creature attacks alone it gains First strike until end of turn. Untap this creature, there is an additional combat phase after this one. This ability triggers only once each turn.