Its counters are not put on as a triggered ability so Panharmonicon would not double it. When you cast Gearhulk, you would get 2 triggers due to Panharmonicon.

Does Panharmonicon work with modular?

2) It doesn’t interact with Sunburst, Graft, or Modular. It does interact with Fabricate. The first three are “as this enters…” abilities which are replacement effects. Fabricate is a “when this enters…” which is a trigger and Panharmonicon only cares about triggers.

Does cascade trigger Panharmonicon?

Panharmonicon will not work with cascade nor converge as those occur before the creature or artifact enters the battlefield, so no woodland wanderer/bloodbraid elf on steroids.

Does Panharmonicon double ETB effects?

You don’t need to control the permanent entering the battlefield, only the permanent that has the triggered ability. Panharmonicon’s effect doesn’t copy the triggered ability; it just causes the ability to trigger twice.

What is a modular triggered ability?

Modular is a keyword ability that causes a permanent to enter the battlefield with a number of +1/+1 counters. When that permanent dies, its controller may put a +1/+1 counter onto an artifact creature for each +1/+1 counter the permanent had on it when it died.

Is Power Depot a creature?

Power Depot is a land, so it can only be played as a land. It cannot be cast as a spell. When it’s put into the graveyard from the battlefield, you may put its +1/+1 counters onto target artifact creature, no matter what Power Depot’s card types are at the time.

Are there any replacement effects for panharmonicon cards?

The answer to both of those is “no”; those cards have replacement effects which modify the way they enter the battlefield (notably, telling you they come down with counters).

How does panharmonicon Double Up Your triggered abilities?

Panharmonicon likes to double up some of your triggered abilities; specifically, any that fire off of an artifact or creature entering the battlefield. So what does that work on? Would it make your Endless One come down with twice the counters, or make your Thing in the Ice harder to transform?

What’s the difference between gonti and panharmonicon?

Gonti gets even better with Panharmonicon, since you will get two cards off the enter the battlefield ability each time, meaning you can plunder one opponent twice or two opponents. With Panharmonicon, Gonti looks more like Arcanis, the Omnipotent. So what’s better than two cards off of Gonti hitting the battlefield?

Can you use strionic resonator with panharmonicon?

Panharmonicon has stolen the spotlight from this great artifact, but Strionic Resonator is still a fantastic card to include in many Commander decks. Like Panharmonicon, Resonator can double up on an enters the battlefield effect for you, since those are triggered abilities.