House Tyrell. Non-Loyal.
Event. Cost: 0.

Marshaling Action: Choose a character you control. Gain X gold, where X is that character's STR. Then, sacrifice that character.

Jason Engle
Wolves of the North #38.

Link: Decklists

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Rules FAQ

You can NOT save a character from being sacrificed, even if sacrificing them is not part of the cost. This is part of the rules under "Sacrifice" in the RRG. (Hypothetically, you CAN save a character from leaving play if leaving play is part of the cost. However, if you do, then the cost will not be paid and the effect will not resolve.)