If Teemo, Scout is played from hidden, can you Gust him before he gets the might gain?

Ruling: Yes, you can Gust Teemo before his might gain resolves. When Teemo enters play, his trigger goes on the chain, and you can React with Gust before his trigger resolves.

Sequence:

• Teemo enters play
• His trigger goes on the chain
• You can React with Gust
• Gust resolves before Teemo's trigger resolves