Take out 2 ordeal of nylea for 2 Alpha Authority . The earliest turn 5, 2 extra lands deal isn't worth losing your creature to the "ungodly" removal in standard. Plus, it still triggers your heroic
Wow, I never considered running Agent of the Fates with green. Looks pretty solid!
Consider running Ranger's Guile and Alpha Authority mainboard to protect your Agent while still triggering Heroic.
Check of my Agent deck and let me know what you think:
Agent of the Fates
Left an answer to your comment on my deck, and thank you for your input!