When choosing the hero power for the dual class arena that hero power is added as a card to your deck (twice, even) and thus the draft recognizes your first pick as card 3/30.
The last two drafts don't get their rating shown as the Arena Helper thinks the deck is already full. So you have to edit them into the decklist manually after deleting the two hero power cards.
When choosing the hero power for the dual class arena that hero power is added as a card to your deck (twice, even) and thus the draft recognizes your first pick as card 3/30. The last two drafts don't get their rating shown as the Arena Helper thinks the deck is already full. So you have to edit them into the decklist manually after deleting the two hero power cards.