You missed the original "we need a Jeskai mana elf" from the day it was spoiled:
These two are so good because you naturally discard them to Ascendancy, great suggestions.
That's fair and the card looks like a really cool build around. The selection for Jeskai Inspire cards is thin though...
Green is so good alongside Ascendancy. If you can manage to splash the enchantment in a Green deck, you are going to have a good time. Didn't know about Sea Tyrant, but it's a perfect fit!