Arent you having issues with so many delta? I guess 2 is more than enough, also you should get a counter spell/trap, since HHG can hold bad your back cards, skill try restart or switcheroo till you farm last gamble or destiny draw
I thought attack the moon would help against cards like pumpkin or balloon, as I can use it more than one time (nonetheless only one removal card) ...Which card would you take out and what counter trap so you have in mind? I actually think I'm fine with kurogane and interdimensional and wouldn't include a counter card, but i'm open for advice :)
I have a magnet deck too, using destiny draw, but when against parasites decks had some issues with stuck monsters, till i get wild tornado 2 and nobleman os externination 2, then 2 econ and etaqua, made my life way easier against HHG and Parasite burn, but depending of the hand 3*d can be hard