Syrensia Deathsplicer

As long as you control an artifact, Syrensia Deathsplicer gets +2/+0 and has deathtouch and lifelink.
As long as Syrensia Deathsplicer is equipped, it gets +1/+1 and has trample and "{g}, {t}: Syrensia Deathsplicer fights target creature."
Whenever a creature dies, you may pay {u}{b}. If you do, that creature's controller draws a card
and loses 1 life.