5 Shadow of the Enemy Yes, Shadow of the Enemy requires a lot of mana to make work, but there are plenty of ways to get a lot of mana even in Tales of Middle-earth (Smaug would like to give you 14 treasure tokens, just as an example)
This omits as it enters abilities like Cavern of Souls, as well as this card enters with abilities like Triskelion
Valgavoth might offer the most flexibility, and Aminatou raw enchanting power, but all Magic: The Gathering 's new Duskmourn commanders have their benefits.
The slow drain from the ETB adds up, especially if youre producing tokens with cards like Bitterblossom
Finishing power on board, check
Eladamris Call: The green mana is sketchy in this deck, but Call might still be a possibility