Does spending buffs reduce Kraken Hunter's power cost, and can Seal of Strength pay for part of the power cost?

Ruling: Spending buffs reduces Kraken Hunter's power cost. Seal of Strength can provide power in place of exhausting runes. If you exhaust Seal of Strength, you only need to remove 1 buff (instead of 2) to summon Kraken Hunter exhausted by exhausting 3 runes total.

Nuances:

• Buffs can also be spent to reduce Kraken Hunter's accelerate cost, as additional costs are just added to the base cost