Silent, Spire's Blight

Cumulative upkeep- Create a artifact token called "Shiv" with "{1}, Sacrifice this artifact: Deal one damage to any target, if this target is a creature instead inflict 2 -1/-1 counters"

As long as you have 6 shiv tokens Silent has
"Ward-Sacrifice a creature"

As long as you have 15 shiv tokens Silent has "Deathtouch"