Does Wind Wall counter Time Warp?

Yes, Wind Wall can counter Time Warp.

According to the card text for Wind Wall, it is a [Reaction] spell that allows you to "Counter a spell." Since Time Warp is a spell, it is a legal target for Wind Wall when it is on the chain.

Interaction Sequence:

1. Player A plays Time Warp (paying its cost and putting it on the chain).
2. Player B responds by playing Wind Wall (targeting the Time Warp on the chain).
3. The chain resolves in LIFO (Last-In, First-Out) order:
   • Wind Wall resolves first, countering the Time Warp.
   • Per Rule 425.1.a, the countered Time Warp does nothing and is cleared from the chain.
   • Because the Time Warp was countered, it is not considered to have been played (Rule 425.1.b), and its effect (taking an extra turn) does not occur.