Banecos, Steward of Death

{1}{r}{t} Sacrifice a creature, add {x}, where {x} is its toughness.
{1}{g}{t} Sacrifice a land, you gain {x} life,
where {x} is the number of lands you control.
{1}{r/g}{r/g}{t} sacrifice a creature, create {x} 1/1 snake creature tokens where {x} is the creature's converted mana cost.