The value of X in Altered Ego's last ability will be whatever value was chosen for X while casting Altered Ego
Green Zoro is a straightforward yet powerful deck, ideal for players who enjoy a swordsman-themed strategy and direct aggressive attacks
Here's what I struggled with: there's a lot of sweet creatures that benefit from tapping and untapping, like drawing cards off Ghostly Pilferer and Arbiter of the Ideal, generating mana with Magda, Brazen Outlaw, copying stuff with Felhide Spiritbinder, or (my favorite) bouncing stuff with Surgespanner
To its credit, a 1/1 with Deathtouch and Reach is nice for one mana, but not nice enough to see play without more relevant text beyond that
Daretti's abilities are all heavily focused around this game plan, from the loot effect to fill your graveyard, to the artifact sac and reanimate, to the ultimate that means your artifacts keep coming back