Does Accelerate cost 1 red rune or 1 generic and 1 red rune?

Ruling: Accelerate costs 1 Energy and 1 Power (red). You can pay this by exhausting a rune for Energy and recycling a rune for Power, or you can exhaust a rune for Energy and then recycle that same rune for Power, effectively using one rune card to pay the whole cost.

Sequence:

• Exhaust a rune to generate 1 Energy
• Recycle a rune (can be the same rune you just exhausted) to generate 1 Power
• Use the Energy and Power from your resource pool to pay Accelerate's cost

Nuances:

• Energy is color agnostic and represented by numerical values
• Power is color specific and represented by Domain symbols
• Both resources go into a pool that doesn't empty until end of turn
• Resources can also be generated by other effects like exhausting a Seal for Power