Which card pool was Embargo in?

[dane]

Out of curiosity I had started recording which cards were in which card pools, but I'd only looked at pools 1 to 3 prior to today, so I know only that Embargo wasn't in one of those.  For completeness I'd be interested to know which pool it was in.  Thanks.

I've now worked through pools 4 to 10 so that I won't have to ask the same question about any other Seaside card that gets deprecated in the next two days.