Soul Harvester

Flying, Ghostly (Toughness = Soul counters + 1)
Whenever damage is dealt to a player put {x} soul counters on Soul Harvester where {x} is the
amount of damage that was dealt
{t}, Remove {x}{x} soul counters from Soul
Harvester gain {x} {b} or {w}
{t}, {2}, Remove {x} counters gain {x} multiplied
by 1.5 life rounded down