You only need 2 other 7-health minions to activate Star Aligner. Considering people might be hesitant to kill the Whelp if they don’t have the means to kill the 7/7, it might work, but it’s weak against silence/poly/etc…

Battlecries occur after the minion enters play.

Source: https://hearthstone.gamepedia.com/Advanced_rulebook#Playing.2Fsummoning_a_minion

Or Play Dead, if you don’t have a coin.

Star Aligner says “3 minions with 7 health”, not “3 other minions”. Check Nesting Roc’s wording.

Also could be situationally good as a discovery with Boom’s hero power.

Glinda + Mechwarper + Treachery + Wrathguard = 6 + (2 + 1) + 3 + 2 = 14
You need Thaurissan on each of those cards once, because the Mechwarper discount will only work on the first one.
After Thaurissan:
5 + (1 + 1) + 2 + 1 = 10
If you have both Mechwarpers in hand, you can either do the combo at 9 mana or play Thaurissan with one piece of the combo missing.
Zilliax doesn’t need any reduction.

We’ll have to see the rest of the set. It’d be a bad idea to sacrifice all even-costed mechs/cards for a hero power buff for half a game…

1) From what I’ve heard/seen, the Hero Power recharges at the end of your turn. The downside is that your opponent can play around it (ie: Not play 7 1/1s if you have KABOOM!)
2) It’s 5 Hero Powers, not 6. I’d rather not add RNG to this card… But you can have 7 Mechs with rush 😉

Seems really bad, but maybe the synergy with Dr. Boom’s Rush and upcoming mechs will change that? A big maybe…

Sneed’s Old Shredder summons the Legendary on the board, this adds it to your hand. This is fair, considering this card is not a Legendary and the mana cost is 4.

During the stream, Peter said that there will be more support for the card. Guess we’ll have to wait and see!

It was said on the reveal stream that spell damage would increase the cost of minions, not the amount.
Thalnos + Unexpected Results = 2x 3-cost minions
Malygos + Unexpected Results = 2x 7-cost minions

Boom and Whizbang for gold, I’d be happy.

Big Red Button is the placeholder hero power when viewing the card. The other 5 are the actual hero powers.

Yeah! 30 golden card deck!

Too early to judge yet, but I suspect this expansion will add (even) more support for Treant/token synergy. Already looking decent with Mulchmuncher!

This is going to be a must-craft for mirror games against friends.

Yeah, token druid with a control-y endgame (kill that big taunt with Mulchmunger and go face with rest of board).

One of the Mulchmuncher is a 10/10 because of Splintergraph. You’re still going to need more win conditions than that, though…

Turn 1-7: Play 10 treants (that must die)
Turn 8: Mulchmuncher + Splintergraft + 10/10 Mulchmuncher