Can you tap all runes for resources, then move Miss Fortune to ready a rune, tap that rune again, and use all accumulated resources to play a 10-cost card?

Ruling: Yes, this is a valid play. Resources float for your entire turn, so you can tap all runes first, then use Miss Fortune's ability to ready a rune and tap it again, accumulating enough resources to play a 10-cost card as long as you don't spend the resources elsewhere.

Sequence:

• Tap all 9 runes for resources
• Move Miss Fortune to ready a rune
• Tap the readied rune for an additional resource
• Play the 10-cost Volibear using the accumulated resources