Also Shuriken while being fun to play in a ninja deck isn't that great, you already have other removal in Doom Blade
KOEI TECMO GAMES/SQUARE ENIX CHARACTER DESIGN: TETSUYA NOMURA CHARACTER ILLUSTRATION: TOSHITAKA MATSUDA SKU: 4988601389785 Presenting FINAL FANTASY card sleeves of Terra Branford from FINAL FANTASY VI
x2] [When Attacking] You may trash 1 card from your hand: K type and your opponent has 3 or more Life cards, K type Leader gains [Banish] during this turn
And youve witnessed Schemes that may or may not have been Terrors of greater perils
I would use all 9 GMX cards in the side deck, along with the extra deck bricks, which are Bishbaalkin, Number 33: Chronomaly Machu Mech and Puzzlomino, the Drop-n-Deleter, and put the 12 tech cards from the side deck in the main deck
"Pot of Acquisitiveness", Spell & Trap removal (preferably Quick-Play, such as "Mystical Space Typhoon"), and "Imperial Iron Wall" can deal with these cards, however