If Blue Teemo triggers and the trigger is reacted to by Gust (removing Teemo), do you still get the top 5 check or does the effect fizzle?

Ruling: You still reveal the top 5 cards, but deal no damage because "here" is not defined anymore. Abilities already on the chain in Riftbound don't fizzle and resolve as much as possible by the current boardstate.

Nuances:

• Effects only fizzle if countered by specific counter effects (like Defy and Wind Wall)
• The ability resolves partially based on what is still valid at resolution