Elements Unite works perfectly,summon gate guardian and keep destroying his monsters,you have 2 de-spell cards to destroy his pumpkin princess,baloons or cage so it's not a problem,so far 4 out od 4 without problems,you can add one de spell too if you have or maybe straight flush also trap because he have 3 set cards in the back row very fast,you can use here any normal glossy monster to combine with elephant gift to draw faster
Bonz fill the back row very fast,so skip the first attack if back row is empty,then he will fill it with pumpkin princess when you attack him and with other spells and traps .For me much more consistent then lab wall cause you can brick if you dont draw cat or dimension gate in first 2 turns.