Blaise grimaced on her behalf. "As if any of them would be of any use to you." The only Gryffindor their year with any real brains had been Granger, mudblood though she was, and with her gone, a study group with remaining Gryffindors or Hufflepuffs would be like trying to learn from a herd of cows.
"I'd be happy to help then," he promised.
Distraction could take many forms, and Blaise gave her a speculative look. "Depending on what you're looking for - the I.S. does at least fill some time." And left one safely outside of the Carrows scrutiny, at least.