House Stark. No Leal.
Character. Coste: 6. FUE: 4.

Ally. House Bolton. Lord.

Reaction: After you win a challenge in which Roose Bolton is attacking, choose up to X total STR worth of characters controlled by the losing opponent. X is Roose Bolton's STR. Sacrifice Roose Bolton to kill each of those characters.

"Fear is what keeps a man alive in this world of treachery and deceit."
David Auden Nash
Ghosts of Harrenhal #81.

Link: Decklists

Roose Bolton

Rules FAQ:

  • Note that Roose's ability checks his current STR, not his printed STR, so all buffs from Winterfell, Needle, etc. apply.

  • Although the wording is somewhat unusual, it works just like any other "do X to do Y" ability, i.e. you sacrifice Roose and choose targets first, and then your opponent can cancel the kill effect with Treachery. (Source)
mplain 211
NB: you can't have him duped and then sac a dupe to make it work, have to discard then re-buy him. "for the north" and "ice" are nice additions with winterfell castle and winterfell to get him up to 9 STR. Watch that make your opponent shiver! — Praetorian1011 43
Keep in mind that you lose the STR bump on Roose if you trigger Ice first. — sabrefox 8
And if you don't trigger ice, ice will be gone before you can trigger it? :P — Megamannen 1
It will go into your hand, yes. — mplain 211