So getting out two or three Merfolk out ahead of your commander is actually a good thing, because when he's out, instead of Exploring once, you can do it multiple times
Morph, Space Goo Emerald is already considered one of the best colours to play if you like using Lorcanas Floodborn Shift mechanic, which is the ability to play character cards for cheaper by putting them on top of a character with the same name that you already have in play
The Blue and Green Praetors, Jin-Gitaxias and Vorinclex would also have been exciting to see, and would have made a significant in both that individual game of Pack Wars as well as my collection of potential cards for Commander
If Ephara enters the battlefield under your control at the same time as other enchantments, its last ability will trigger for each of those other enchantments
Deathsprout removal and ramp for Golgari in one card