Does Grawp's ability trigger any time the active player has six or more cards, or only when checked at step 2?

Question

Accepted Answer

Only when checked at step 2. Players check Grawp's six-card condition at step 2 of the turn, so later discards that drop the hand below six do not trigger it.

Harry Potter: Hogwarts Battle

Does Grawp's ability trigger any time the active player has six or more cards, or only when checked at step 2?