Mox Pentacle

Tap two artifacts you control named Mox
Pentacle: Add {c} to your mana pool.
Tap three artifacts you control named Mox
Pentacle: Put a creature with a converted mana
cost of 3 or less from your hand into play.
If you control four or more artifacts named Mox
Pentacle, sacrifice all of them and end your turn.
Four is right out.