Is Ysera, Unleashed a fair and balanced card?

https://hearthstone.gamepedia.com/Ysera,_Unleashed

Whenever an opponent plays this card, all I can think is, "Wow, SEVEN dragons down the road. That's many. Even the animation needs a 2nd visual just to show that many going into the deck."

Certainly a 4/12 do-nothing minion for 9 mana is pretty lame, but my question is: Should Ysera, Unleashed give seven freebie* minions?

If we look at OG Ysera, how many end-of-turn cards can she give, on average, before she dies? 2? 3?

If we take that as a barometer, where 2-3 in-hand cards that vary in power is worth 7 in-deck minions that vary in power, we can ask "is that a power-creep, or is it fair?"

In my opinion, 7 is unfair; it's just a bit too many when we're considering "dragons" as a tribe. There are 48 dragons in Standard, but only 47 of them are able to be summoned (Nozdormu cannot).

Out of those 47:

9 have 5-6 stats (2/3, 3/2, 4/1) — 19.1%

• Poisonous, Deathrattle, Lifesteal, Cannot Target, Rush, Spell power included

7 have 8-9 stats (3/5, 3/6, 5/3, 4/5, 5/4) — 14.8%

• Deathrattle, Cannot Target, Rush, Divine Shield, Spellburst included

9 have 10-11 stats (2/8, 4/6, 5/5, 5/6, 6/5) — 19.1%

• Deathrattle, Rush included (weakest group for keywords)

6 have 12-13 stats (4/8, 4/9, 5/7, 7/5, 7/6) — 12.7%

• Deathrattle, Spell damage, Spellburst, Taunt, End of Turn card included

16 have 14+ stats (4/10, 4/12, 7/7, 8/8, 12/12) — 34%

• Deathrattle, Cannot Target, Taunt, and some insane keywords First spell free, Spell damage +5, end of turn Dream card, Take damage generate 6/6.

Now, if we're talking free* minions, anything is nice, but those topmost 3 groups of stats add up to a 65.8% chance of rolling a well-to-excellent statted minion. So, 4.6 of your 7 minions will be very good, on average, with the chance of being sometimes incredible.

I say Ysera, Unleashed should be nerfed down to 5 Dream Portals.

So, now you know what I think and the overall details of this popular card. What do you think?

*By "free" I of course mean paying for them with lack of initiative on the drop turn.