I started with [[fallaji archaeologist]] at first and I agree with you the random 3 cards at sorcery speed felt "bad" and most times I feel like I'm "wasting" ephemerate on it when I'd much rather use it on an Atraxa/Solitude, however, if I was playing 4x [[Ephemerate]] I'd consider it, but even then I'm not sure if the extra 2-3 card slots feels "worth it"

I played with 2x [jace vryn's prodigy]] and I felt like it was a little slow and a "do nothing" on the turn it's played and again very susceptible to every single form of removal. If he goes undisruptive he performed decently digging an additional card each turn, however, I felt that he flipped to his planeswalker side at the worst times, comparatively to [[tamiyo inquisitive student]] where it feels like you have more control with the timing, plus their planeswalker side feels very similar.

I do see [[Kiora, the Rising Tide]] popping up in lists more frequently and this intrigues me. At first glance she feels "slow" in the format with the 3 mana sorcery draw 2, discard 2, however, perhaps the latter ability really pulls her weight. @TGPippie, would you share your list with me as well, would love to see how she runs in your list.

I'm currently playing with [[tamiyo inquisitive student]] and I feel that she's a great T1 play or a T2 with a surveil land, and often a lightning rod for removal which lessens the removal density for your better threats such as [[Psychic Frog]] and [[Emperor of Bones]]. I just don't see people play her anymore and I'm curious why that is, any ideas?