pokemon cryogonal card Colorless Icy Snow (30) Weakness Metal ×2 Resistance None None Retreat Cost Cryogonal 055/197 NM / M

The tissue on the surface of its body is curiously similar in composition to an Apricorn

That is the hallmark of a strong Modern sideboard card, one that is still plenty strong enough to wreck the primary matchup you bring it in for, yet with a secondary mode that gives it additional utility

Annul is a nice reprint that I think has a place as a one or two-of sideboard slot in Azorius Control

Rendmaw, Creaking Nest Rendmaw, Creaking Nest operates moves right away on ETB

Any combo that only needs one card and a Commander is fantastic, and being in a colour like black that doesn't normally get this sort of thing makes it even better