Nowadays, Once Upon a Time sees very little play
Back then, it was very straightforward to get involved with the game
Thrasios, Triton Hero (one of Magic's best merfolks) and Kydele, Chosen of Kruphix give you access to ramp thanks to their green color identity and several useful spells, including some coin flip ones, thanks to their blue part
Harkening back to last weeks episode, looting effects are a test of player skill and predictive play, requiring you to constantly be decisive about what cards you need and which cards you dont
On the other side, we have Open Hostility, which backs up its lowest overall value by having the worst reprints, with only Iroas, God of Victory being all that important or of significant value