I think thats all fair except for Hero's Call, I don't see the OP part
Hero's call only brings a Hero to your hand and poly to set up for a fusion, and I doubt you can chain Hero Signal in the mix, and just like Hero Signal, it has to wait for a monster to be destroyed and can be countered/destroyed and such.
Stargazer I meant to be draw power and Shining support, so I can see the complaint, but still, meh.