Jio is a walking Book of Lunar Eclipse on a body, Green Ninja is an extender that turns on various pieces of once-clunky support, and crucially, Yaguramaru is a Level 5 Fusion monster, turning Instant Fusion into an extender, on top of being reasonable removal himself
These cards combine to form an infinite mana loop that also creates infinite Thopter tokens, and it just so happens Breya's abilities let you filter mana into damage, life gain, or board removal as needed
Using two Ice Picks to scoop each other up every turn is also effective, and is actually a frequently used combo
Most aggro decks could never beat a play like that if you back it up with counterspells
There is no world in which I am not looking to play Tormenting Voice, Faithless Looting, or some kind of Searing Spear over this