Lake Laogai

{t}: Add {1} to your mana pool.
{t}: Add {u} to your mana pool. Lake Laogai deals
1 damage to you.
{2},{t}:Sacrifice Lake Laogai: Target creature you don't control becomes a colorless creature with base power and toughness 1/1 until the end of turn and it loses all abilities and cannot have or gain abilities until the end or turn.