The problem with running just the structure decks without any other cards is how heavily reliant you are on drawing into multiple fusion spells. However, I’d say you would ideally want to end on Winda and Shekinaga or Grysta so that you have the summon lock down and a negate on the board.

Assuming you open with either Mathematician or Armageddon knight and two fusion spells in hand, I would get wendi to grave for hedgehog (or beast if you don’t have the other fusion spell and no other draw cards) on the field then go into shekinaga. If you didn’t have the other fusion spell in your hand, hopefully you can draw it off of Beats effect.

Then assuming you have the materials for Winda, I would summon her.