Rainbow Fault

Rainbow Fault enters the battlefield tapped.
Tax 1 (Sacrifice this permanent at he beginning of the upkeep unless you pay {1} or 1 life.)
{t}: Add {2} mana of any color to your manapool and lose 2 life.
When Rainbow Fault enters the graveyard from anywhere add {3} of any color to your manapool and lose 3 life.