It balances out quite nicely and I think it'll be playable, but it isnt too impactful
Stay safe out there, and keep slinging that cardboard
Once theyre there, Regna and Kravs abilities guarantee you at least two card draws, 2 life, and two more Warrior tokens each turn that you activate Kravs ability, but this is a middling payoff for whats at least 12 mana worth of set up
Once you max it out, dying non-token creatures spawn Zombie tokens, making it feel a lot like Teysa, Orzhov Scion in action
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When Borreload Savage Dragon is Synchro summoned, players can equip 1 Dragon-type Link monster from the GY to it and place Borrel Counters on it up to the Link rating of that monster