When playing Sprite Mother, can the opponent react to the sprite token it creates, and when can you react to cards being played?

Ruling: Playing Sprite Mother cannot be reacted to, but her "When you play me" triggered ability goes on the chain and can be responded to with reactions. This applies to all "When you play me" effects.

Sequence:

• Sprite Mother is played (cannot be reacted to)
• The "When you play me" trigger enters the chain
• Opponents can now respond to the triggered ability

Nuances:

• All triggered abilities (including "When you play me" effects) enter the chain and can be responded to