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Whenever you cast a white-bordered spell, this creature gains double strike until end of turn

Kai could play an Erase effect - even if it was a slightly worse Erase output for the "same" mana

SR Super Rare Adamancipator Crystal - Leonite X FIRE Level 4 [ RockEffect ] ATK 0 DEF 2200 If this card is Special Summoned by the effect of an "Adamancipator" card: You can place 1 "Adamancipator" card from your hand or GY on top of the Deck

If worst comes to worst, it can always be used as Ravine fodder

As a more powerful example than a simple Shock, you could activate Zevlor's ability, and then target an opponent with a Bribery to search their library for a creature and put it onto the battlefield under your control