I was shaman, all cards were 1 mana except for 2 tidal surges in my hand which both remained 3 mana. Opponent played lady anacondra after celestial don’t think that changed the tidal surges. would have made a difference in game as well. Why were they not 1 mana? Opponent even played a second celestial and they stayed 3 mana.
Were the tidal surges added to your hand after the Celestial Alignment was cast? Did they somehow move from your hand to your deck at some point? In either of these circumstances they would be expected to have their base cost.