Phyrexian Altar

Sacrifice a creature: Add one mana of any color.

Cryptolith Rite

Creatures you control have "{T}: Add one mana of any color."

Lands you control have "{T}: Add one mana of any color."
{T}: Add one mana of any color.

{T}, Sacrifice Lotus Petal: Add one mana of any color.

If an effect would create one or more tokens under your control, it creates twice that many of those tokens instead.

You have no maximum hand size.
{T}: Add {C}.