Infinite mana (The hard way)

Whenever a creature enters, you may add an amount of equal to the number of creatures you control that share a creature type with it.

Enchant creature : Untap enchanted creature. : Enchanted creature gains flying until end of turn. : Enchanted creature gains shroud until end of turn. (It can't be the target of spells or abilities.) : Enchanted creature gets +1/-1 or -1/+1 until end of turn.

: Put a charge counter on this artifact. Remove a charge counter from this artifact: Add one mana of any color.

Flying

, , Return an artifact you control to its owner's hand: You may put an artifact card from your hand onto the battlefield.