(2020-01-24) This ability triggers only on your very first spell during an opponents turn, not the first spell after the card is on the battlefield
Return of the Wildspeaker is another solid option, especially given it can be cast in response to removal
I don't know that I've seen anyone speculating that Kamigawa Titanbreach would suffer from the same problem, at least not at this early stage, but Bleiweiss clearly wanted to nip the idea in the bud
The other four options all care about Politics via voting: of the bunch, I think the face card Galadriel, Elven-Queen is surprisingly the weakest, something I rarely say for a precon
For more information please see magic any time you could cast a sorcery (that is, you have priority during your main phase and the stack is empty)
And fourth, we want to make cards that present a challenge to players so that a select few will rise to that challenge