When Tideturner is played from hidden as a reaction, does its 'on play' effect trigger on the same chain or a new chain?

Ruling: Playing Tideturner starts a chain which immediately resolves since you cannot react to permanents (units or gear). After Tideturner is in play, its play effect triggers on a new chain to which players can react.

Sequence:

• Tideturner is played from hidden as a reaction, starting a chain
• This chain immediately resolves (no reactions possible to permanents)
• Tideturner is now in play
• Tideturner's play effect triggers on a new chain
• The player who played Tideturner gets priority first and can play reactions
• Once they pass, the next player can put reactions on top

Nuances:

• You cannot react to permanents being played (units or gear)