Quote Rocket (

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To get Dragon Type damage you make the Dragon Slayer item, is in the shop at the top right corner of the map, didn't check the replay yet but if is without this item may be a bug
Thanks but it is not what we are asking exactly. In this replay and his satyr replay too he does the sword you are talking about then change attack type without putting it on which means he gains a slot. I don't think it's a bug it should be some kind of secret recipe.