Spirit Bonds question.

[sinestroface]

I have a question about the MG15 card Spirit Bonds.  It says "Whenever a nontoken creature enters the battlefield under your control, you may pay 1 White. If you do, put a 1/1 white Spirit creature token with flying onto the battlefield".

No where on the card does it say you can only do it once i.e play a creature and create 5 spirits if you have the mana to do it.  Cards like Rootwalla from MG14 specifically say "Activate this ability only once per turn".  Am I incorrect in reading this as being able to generate multiple spirits off of a single creature spell?  If not, please cite the rule that disallows this.

Thank you.

[lonelytower]

Gatherer rulings state that you can only create one token for each nontoken creature. However, I'm not certain if this would still apply to a deck that splashed recursion, i.e. the creature enters the battlefield multiple times.

[Drunk Cynic]

You have misread the triggered ability. When a non token creature enters the battlefield under your control with Spirit Bonds in play, it places a trigger on the stack. When that trigger resolves you may pay {W} to get a 1/1 Spirit. That ability only allows you to pay W.

A parallel does not exist between Rootwalla and Spirit Bonds.