Once you choose to create a token copy of an enchantment during the resolution of Ondu Spiritdancer's ability, that ability won't trigger again that turn, no matter how many more enchantments enter the battlefield under your control
But just as we on the Rules Committee and Commander Advisory Group are tuned in to what the bulk of players are talking about and playing at pick-up games with strangers at the LGS, so, too, is Wizards aware of how Dimir players are essentially in a spot of negotiation every time they sit down at the table
Young MacGuffin Soft-Spoken Son Sharing this card
The Queen Diviner 218/204 Im a little surprised about this card getting an Enchanted print
As you would expect, such schemes are not included here
Serviceable, but still on the chopping block until a better sideboard card springs to mind