I actually changed my lead before I knew you were my opponent. My team doesn't have a "fixed" opener, I alternate between three different pairs. Cresselia is my only character with setup-moves, however Steelix/Rotom probably makes the most sense since they're the least powerful of the three sets, but then they carry some unique talents too. I guess throwing any 'man to early can screw you, depending on who your opponent is.
A word to the wise, though: Running a wall/sponge in Doubles (your Dry Skin Toxicroak) carries the serious risk of encouraging the enemy to double up on their teammate. Since you were not fortunate enough to Will-O-Wisp Steelix this time, I could freely ignore Toxicroak and focus on bringing down the Water attackers. I'll probably regret telling you this, but getting a little more aggressive with Cross Poison Poison Jab (pardon my crappy memory, anyway it really should be your main attack unless priority is actually needed), and possibly also getting equipped with Focus Punch (would work great with the Substitute), could go a long way.
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