Eladain, the Money purse

Whenever an artifact enters the battlefield, you
may pay {1}{w}, if you do, create a tapped treasure
token.
Whenever an enchantment enters the battlefield,
you may pay {2}{u}, if you do, create a clue token.
Whenever a creature enters the battlefield, you
may pay {4}{w}{u}, if you do, create a 1/1 human
soldier token for each color type of land in play.
"Let them come, I have enough coin for all."
-Eladain