Does paying repeat costs on a spell count toward Lux's legendary ability that cares about spell costs?

Ruling: No, Lux only looks at the printed cost of spells, not additional costs like repeat costs.

Nuances:

• Lux can be triggered by spells that reduce their own cost or have alternate ways to play them
• For example, Hostile Takeover triggers Lux even when played from hidden (alternate play method)