And dont forget about the London mulligan either, which can immediately set you up without any knowledge from your opponents
Pyroblast is cheaper in a gold border version (not tournament legal), but all the black and white bordered versions are rather valuable
It's not terrible in Ayula decks, but it's certainly not one of the better Bear generators, and I'd rather skip on the mediocre Bears and just run more card draw / tutors to find the good ones instead
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Due to the double colourless requirement of its first attack, Reshiram BLW would also be used as an inclusion in many decks for a Fire-type attacker - ranging from multi-typed toolbox decks to Donphan HS 107 decks to even Zekrom BLW-based decks
Its not especially exciting, but its useful, especially with so many artifacts in this set