How do you pay the power cost for Flame Chomper - by paying mana or by recycling/exhausting?

Ruling: You pay power costs by recycling cards or exhausting a Seal. Seals do not add mana; they are used for the exhausting cost.

Sequence:

• To pay a power cost, recycle a card of the appropriate color OR exhaust a Seal
• Seals themselves do not generate or add mana to your pool