I have a question about a scenario that I think I know the answer to but would appreciate confirmation from those more involved in the rules than me.
The scenario involves a guarding creature capable of a push effect with its counterattack, a flying creature making the attack, and a wall with the passage attacks trait. For clarity, we can use the [mwcard=psc23]Shoalsdeep Tidecaller[/mwcard] guarding, the [mwcard=PSC06]Crusader Griffin[/mwcard] attacking, and a [mwcard=PSW01]Coral Barrier[/mwcard] as the wall.
The question is if during the counterstrike step the Tidecaller makes the push effect, could it push the attacking Griffin through the Coral Barrier, triggering the passage attack?
I think the answer is yes but please correct me if I am wrong. My reasoning is since the Griffin is attacking a non-flying creature, it lost the flying trait for the duration of the attack. Unless I am mistaken, the push effect, and the passage attack of the Coral Barrier, is resolved during the attack (specifically the counterstrike step), and thus before the Griffin regains the flying trait.
Is my interpretation correct?
