Does Tergrid, God of Fright trigger when opponents discard tokens?

Tergrid, God of Fright triggers whenever an opponent discards a card or sacrifices a nontoken permanent. The critical issue with tokens is that they are not cards, and they have a very specific rule about zone changes.

Under CR 111.7, when a token moves to any zone other than the battlefield (or the stack in very narrow cases), it ceases to exist as a state-based action. Specifically, if a token would be placed into the graveyard from the hand or battlefield, it is immediately removed from the game instead of remaining there.

Because a token is not a card (CR 111.1), discarding it does not put a 'card' anywhere. Tergrid's ability looks for an opponent to 'discard a card' — the token never satisfies that trigger condition since tokens cease to exist before the graveyard zone matters.

Concrete example: Your opponent controls a Dakmor Salvage and a Llanowar Elves token somehow placed in their hand (imagine a strange copy effect). If they discard that token, it simply vanishes. Tergrid does not trigger, and you do not get to put anything onto the battlefield from their graveyard.

This also means Tergrid's second clause (sacrifice a nontoken permanent) specifically excludes tokens from that path as well, so there is no route by which a discarded token triggers Tergrid.