Marshals Marsh

Whenever a Creature or Trooper dies or exits the battlefield, add 1 kill counter.
When Marshals Marsh enters the Battlefield,
Target Creature Gains;
"At the beginning of your upkeep, Sacrifice any
Permanent other than this card you control."
{b}{b}{b}{2}{t} Exile this card, then return it to the battlefield with a kill counter.
{t}Remove 10 kill counters: Target Creature or Trooper you control Gains Hexproof, and Indestructible.