Certainly looks so.

For me, I am looking forward to a few mummies to keep Tjusut company. He gets lonely standing on guard all by himself.

As the others have said.

Also:

Be prepared to lose to the new players. Give them suggestions on possible plays, warn them if they are about to do something particularly silly, and make some plays of your own that are not optimal but which demonstrate the sorts of things that can be done in the game.

I have taught three others in my time and each time they beat me in the apprentice match, going away with a smile. When they each came back for the second game, though, well... 

Still going through the new academy druid/elementalist cards.

Acid Blast
5 mana for a sweeping 2-dice attack, corrode on a 9+ on the effect die.

That's simple enough.

But what does it mean when it says " When this attack Assigns Effects place an additional Corrode condition on the defender"?

Is it (A): if the defender gets a Corrode (i.e. you roll 9+), it actually gets two Corrodes.
Or is it (B): During the Damage and Effects Step (the arena equivalent to the academy Assigns Effects) the defender gets a Corrode regardless of what was rolled on the effect die
Or is it (C): (just spelling out what "9+ = Corrode" means in the attack bar)

Or is it some fourth option (D)?

Just had an in-game argument about it.
I said it must be (B), since no other academy attack card has the same sort of wording, ruling out (C), and the text is not a conditional (i.e. it says 'when', not 'if') which seems to rule out (A). 
My opponent went for either (A) or (C), on the grounds that (B) would make the card too powerful for the cost.

Does anyone have any insights?

Oh! Thanks very much!

Summoning does not count as entering.

Pushing, teleporting, walking or flying trigger the pillar, but summoning does not.

Rules supplement p.9

The current version of the Codex says this of "Defrost":

'this is a trait of flame attacks. It will be defined in a future expansion of the game in which frost damage is introduced.'

We now have Frost damage, but the Elementalist's little rulebook says nothing about Defrost.

Burn tokens and Freeze tokens cancel each other out, but flame attacks do not necessarily cause a Burn, so that can't be it.

Have I missed a memo somewhere that explains Defrost?

Two Sslaks or an Usslak would certainly slow the players down.

I have seen equidistant orbs work well in bringing on mage conflict, but I have also seen games where two mages have long standoffs over a zone, with neither player wanting to move first.

As you say, lots of variables are in play, but the longer a game goes, the more player interaction will be forthcoming.

Anyway, great to see some action on the Domnation front - it is an underused style of the game.