From Fallen London Wiki

new spoiler for Return to Return to Dominaria: a 2R Sliver with "Sliver creatures you control have 'This creature cannot be tapped, prevented from untapping, or have stun counters placed on it by spells or effects opponents control.'"

seems kinda niche ngl, are freeze effects really that much of an issue that one wants to dedicate an entire card slot to hosing just them?