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White has plenty of options here, such as Adamant Will and Break of Day , but other colours can get in on the action too (even red - thanks Boros Charm )

In the OCG / TCG , there are only four Main Deck "White" monsters, all of which are non-Tuner by default

The fact that this guy cant be targeted for attacks means that with two XYZ materials you can sink in a devastating 4000 damage

You can cast tutors, draw spells, or even win conditions at instant speed, dramatically increasing your flexibility

Swinging for four every turn and having a blocker is extremely useful and putting her in a Green/White deck with Regenerate and Giant Strength made her even more deadly

In isolation, this is just an extender with additional steps, but where this card gets impactful is when you factor in the spell card welding these Boot-Ups to your Gadget archetype