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Losing frontline is an upgrade as well in my book. In theory, the card can scale infinitely, and not having frontline means it's not being focused, the drawback is you cannot use it as a last defense card.

Agree. I keep his card on my deck and combo with roar +x/+x to cards and also, when opponent roar entes, it will also gain.

So, 5/5 6/6 is easy to get in few rounds.