@chubbyrain Yeah, I usually don't board in claim against them unless I see either leyline or skullclamp, in which case I board in only assassin's trophy. Though we can make our gameplan without graveyard, it's pretty tough to beat pyromancer that way. Getting caged is one thing, we can still execute our gameplan with squee and wonder being active against xerox, but without even it, their aggro/control gameplan is usually better. Considering they have claim and pithing needle it's hard to get survival online games 2 and 3. Way too hard to get more than 1 activation.
Btw, how are your numbers against PO? One thing that is pretty relevant is the difference between the leagues and the challenges meta. In the last 3 leagues I faced AT LEAST 3 xerox decks in each one of them (this was 3, the one before 4, and before it 3). Also in this one I faced 2 PO. I'm hitting the good part of the variance against PO lately, the last 5 matches were win, but I'm aware that it's no more than 55% chance of beating PO with BUG survival. I love this bug version but maybe yours is better depending on the meta (in the same way as the dark version was better than the bug for some metas)