It's really the only card that helps smooth over the consistency issues inherent to this deck (and many other non-archetype decks), and it does its job very well here
The two key Spells to the grind strategy are "Sky Striker Mobilize - Engage!", which searches and draws, and "Sky Striker Mecha Modules - Multirole", which can re-Set used "Sky Striker" Spell Cards in the GY during the End Phase, providing a massive boost in card advantage
Sram, Senior Edificer, Open the Armory, Steelshaper's Gift, and Stonehewer Giant are solid secondary picks, and from there it depends on what type of Equipment deck you want to be and what your deck is currently lacking
Activate AiL to draw 1 Activate CWD to summon itself, then Loading
Finally, that ethos can also be extended to Nintendo and Pokmon stores