Zero Point Ballad The flexibility of Zero Point Ballad is strong and with X at 6, you keep the best creature available
Spectral Sailor is your best one-drop, and probably would be even if it was just a textless 1/1 flyer with flash, but its card draw ability is dramatically more relevant than you might realise at first, as it helps you pull ahead in card advantage in the games where your Curiosity-effect engine is broken apart
If you'd rather play this deck in a more aggressive way, Moonblade Shinobi is a great choice
After spending the last several years building and playing biologically-themed tribal decks and surprising people with wonky builds of well-known commanders, he decided to share his thought and design process with the community, incorporating ideas from his many playgroups into articles, while also spending way too much of his life underwater
However, its in human nature, that you dont want to risk the worst thing happening, so you tend not to play cards like this