Hi. OP here. Thanks for your replies.
Yeah, my intent of the thread is to find some really super-ideal 1st level "rider" spells that provide a little extra offensive oomph to the target of the Parchment Swarm. I do agree that the author's wording of the scroll add-on is a little sloppy. But I thought it would be cool to have a mage have a half-dozen 1st level offensive scrolls quickly available for combo'ing against specific targets with specific weaknesses. Damage add-ons would be mostly pointless - so I'm looking for 1st level spells that have a bad condition-granting effect. Remember, you can use 1st level scrolls from ANY class, which broadens the possibilities.
As mentioned above, Deja Vu has promise. So does Grease. So does 3.5 Spell Compendium's Net of Shadows versus certain foes.
Thanks for your help!