On top of giving hexproof as a way to fizzle targetted spells, your creature also becomes indestructible in the face of board wipes
What I mean by "making it to the long game" is that Jeskai Shiko is a deck that fundamentally is favored the longer the game goes on
From WOE itself, Sleep-Cursed Faerie seemed like a hard lock to at least make the 75 for tempo decks, with or without additional Faerie support
Its GX attack can hit hard and heal your entire board, which is very powerful
Just like Lightning Energy, its a little odd that Metal Energy is so-called, as it only covers one type from the video games: Steel type Pokemon
Let me set up a board state for you, featuring a problem you will run into variations of countless times in drafts