That, or the fact that Morrow's element was wind, so maybe he just had an easier time with something that looked like it worked by using the wind to fly? Wait... does this mean that the ninja learned to use another element? Can you even do that? Does this mean some elemental powers can be taught like techniques?

Another thing, some of the "elemental" powers make no sense. How is "speed" an element? Or "the mind"? Hell, wtf even is the element of "Amber"?

Why can the elemental masters summon dragons? What possible reason is there for that to be incorporated into their powers?

Also, Kai (and maybe Nya) is a blacksmith, why do we never see him use any of these skills since the pilot episodes?

Here's a head scratcher, Kai's parents could very well be older than Garmadon, and by extent, Wu. Since Kai's parents were adults during the Serpentine war, and Garmadon was a child training under Chen, that would logically mean that Kai's parents, and quite a few others are actually older than Wu and Garmadon.

Also anything having to do with a canon, complete, coherent timeline (Most notably past timeline).

Here is a plot hole. In Season 1, when Garmadon created the Mega-Weapon, he said that the Golden Peaks were where the First Spinjitsu Master forged the Golden Weapons. Problem is, the Golden Peaks are a part of Ninjago, and the Golden Weapons were what the FSM used to CREATE the ENTIRE realm of Ninjago. Wouldn't they have been made in the Realm of Oni and Dragons, since that's the only place the COULD have been made in order to be used to create Ninjago?

Didn't think about that one.

The Master of Ice visited Julien, gave his powers to Zane, then went off.

Is it like Cole? Like the first time he did it he succeeded. He was turned into a ghost already.

Aha.
Real quick: in S1 E1, Nya says 'I leave for a day and everything falls apart', but it looks like her and Wu have been gone for a week at least.

oh I have a plot hole if Garmadon is supposed to be the older brother and Wu is really old now then how was Lloyd still a child at the start of the series!?

What about Echo Zane? How come we don't see him in The Last Voyage, but then he shows up in Last Resort?

How come the overlord just suddenly ceased to be a threat after ZANE made him explode but when LLOYD, THE CHOSEN ONE, defeated him the overlord was only at a minor inconvenience? Did the overlord just give up and decide to stay on the dark island sulking? Can the ninjas ever actually destroy the overlord as in a famous quote by... I can't remember: 'in order for there to be light, there must also be shadow and in those shadows, darkness.' Essentially, what happened to the Overlord?

While this is very good, wasn't Morro possessing Lloyd at the time? Though, I suppose Lloyd's elemental power, one of the strongest, would help in some way.

Yeah it doesn't make anysense

Why couldn't Sensei tell Nya she was the master of water earlier?

I would just like to know: what is the proper time line of events in Wu's and Garmadon's past, including ages?