Thunder and Fire Blast are not in the Goldenrod Store in GSC. Only HGSS. The punches were replaced during the transition. Only in the Game Corner.
Hence, I feel Staryu (C) and Staryu (GS) should be tiered separately.The early Water stone is only available in Crystal. In Gold/Silver, you have to wait until well into the postgame, making Staryu considerably less effective.
Crystal also has Thunderbolt and Ice Beam, for the postgame, if the early Water stone wasn't enough to set C Staryu apart from G/S Staryu.
I mentioned this in the Flareon and Vaporeon section, I think.I feel like this should be mentioned as it ONLY works in Crystal. The DST Trick. How it works if if you need a Stone that generally requires a Call, let’s say for example Gina, you ensure she is your only number outside of Mom, Elm, and Oak. When you switch DST, it forces a call. The only one who would really call you is Gina. Your mother only calls if you win money and she bought something. Elm only calls for major events and Oak just never does.