Board Thread:Episode Discussion/@comment-24573226-20161224121458/@comment-27144409-20161228044711

Back to the summoning candidate debate.

Winter's exact phrasing was "fallen foes". While I doubt she'd be able to summon a Deathstalker as she only held it off before team JNPR took it down, she had an important part to play in killing the Nevermore.

One other possibility is the Paladin that got carved up, since it pushed her to the point that she made a functional summon. It was soulless like the Grimm, but it is certainly possible that the nature of Grimm makes them uniquely compatible with the Schnee summoning ability.