#moving counters

Ok, so if you control both of these permanents and a creature ((with some counters on it) and that creature leaves the battlefield, then both the Ozolith and Resourceful Defenses will trigger. Each of those triggers will work fully and you'll end up with a matching set of counters added to both of them.

I just ordered the Call for Backup commander precon and plan to run it with Shalai & Hallar as the commander and I noticed that Forgotten Ancient is in the deck. I also own the original Ikoria Ozolith So my question might be stupid, but does "moving" +1/+1 counters from one permanent on another count as putting them on that permanent (for purposes of shalai/hallar triggering)?

Thanks and sorry if stoopid...

There's no such thing as actually moving a counter, at least deep down in the rules. Moving a counter just means removing it from where it was and adding that same kind of counter to the other permanent.

When Hangarback Walker enters the battlefied (with an extra counter from Hardened Scales), the Graft ability of each creature with graft will trigger separately. When each of those triggers resolves, if you move a counter from the graft creature, Hardened Scales will add a second counter to the creature that the counter is moving onto. This is because moving a counter really just means removing the counter from where it is and adding a counter of that type to the other permanent.

In this situation, you’ll wind up with 6 counters on your Hangarback Walker if you opt to use both graft abilities.