Quirion dryad with multicolored cards

[dber]

I would like to know if I have a Quirion Dryad in play and I play a card with several nongreen colors, for instance, Boros charm, does Quirion Dryad get the bonification of 2 counters or just 1. Thank you

[synthetic]

7/1/2012   Quirion Dryad’s ability will trigger only once per spell you cast, as long as that spell is at least one of the listed colors.
7/1/2012   Quirion Dryad’s ability will trigger if you cast a spell that’s green and at least one of the listed colors.


it would only trigger once...