How much power do you need to spend to target a card with Deflect when no number is specified?

Ruling: When Deflect has no number specified, you pay 1 universal power to target it. If it's Deflect X, you pay X universal power.

Nuances:

• Shield and Assault work the same way - if there's no number after the keyword, it defaults to 1
• Universal power can be generated by recycling a rune of any color or through legend, gear, or unit abilities that generate universal power