On rare occasions, Konami will create a Link 1 monster that actually follows basic balance principles, and Gravity Controller is the best example of this concept
And yet, if they only knew it, that is about the last place in the world that a conjurer, as a rule, would use as a receptacle for anything
Master Duel, this deck can be built by getting [one copy of the Re-Contract Universe Structure Deck] and [cards obtained in Solo Mode], [crafting many N/R cards], [crafting one SR card], and [buying all the set items]
Due to its low mana cost, Esper Sentinel is generally more effective in constructed formats but still packs a punch when played early
but yeah, I can understand why you may have gone 1 less for this build
Many of my fondest memories with some of my friends has been over a game of Commander, and that's really awesome