The way I see it, you have the following main options, and thats outside of just upgrading the removal and finishers: Untapping Tokens Aristocrats +1/+1 Counters Big Spells So, lets go over a few of the options available to us and the cards I like, before going over my personal picks for upgrading
If you really wanted to cover all the bases, you could add 9 more cards that, according to my research, are rarely but occasionally played competitively these days: Arrogant Wurm, Beetleback Chief, Bottle Gnomes, Fyndhorn Elves, Order of Leitbur, Order of the Ebon Hand, Portent, Shield Sphere, and Whispers of the Muse

View as Gallery View as List SE Secret Rare C Common SE Secret Rare C Common SR Super Rare C Common SE Secret Rare UR Ultra Rare SR Super Rare SE Secret Rare STAR Starlight Rare C Common C Common C Common SR Super Rare C Common SR Super Rare UR Ultra Rare UR Ultra Rare SR Super Rare C Common SR Super Rare C Common C Common C Common SE Secret Rare STAR Starlight Rare UR Ultra Rare STAR Starlight Rare C Common C Common C Common C Common C Common C Common SR Super Rare SR Super Rare UR Ultra Rare SR Super Rare SR Super Rare SR Super Rare C Common SE Secret Rare STAR Starlight Rare SR Super Rare UR Ultra Rare C Common C Common UR Ultra Rare SR Super Rare C Common C Common UR Ultra Rare C Common SE Secret Rare UR Ultra Rare C Common C Common SR Super Rare C Common UR Ultra Rare UR Ultra Rare C Common C Common SE Secret Rare C Common SR Super Rare C Common C Common UR Ultra Rare SE Secret Rare SE Secret Rare SR Super Rare C Common SR Super Rare C Common C Common C Common C Common C Common C Common C Common C Common SR Super Rare C Common C Common C Common SR Super Rare C Common C Common SR Super Rare UR Ultra Rare SR Super Rare UR Ultra Rare SR Super Rare C Common SR Super Rare C Common SR Super Rare SR Super Rare C Common C Common SR Super Rare C Common STAR Starlight Rare Beetrooper Scout Buggy X WIND Level 3 [ InsectEffect ] ATK 1000 DEF 300 You cannot Special Summon monsters, except Insect monsters

The Wind-Up archetype might not be meta-relevant in the modern era, but if it ever returns, this card will be a core part of the strategy