Correct. The rarity of S rank is much higher than the other ranks (i.e. much much more difficult to get S rank). So using it on an A rank Ark is a smart move.
LVL 99 goldenhorn
HP 2251
ATT 1443
Magic 782
SP 19
DEF 2068
Resist 1935
Feud spear
guardian
no guard
stampede
last will
And good move on selecting Goldenhorn as this week’s OM devs, this is a wise way to counter timers (because they have it already anyway) before the updates kick in.
Next week likely to be Bloodclaw? LOL
With the best fire Ocarina at level 99…
Guardian - Blocks attacks for 500 TU, costs 100 TU
No Guard - Removes all DEF and adds it to ATK for 500 TU, costs 100 TU
Stampede - Physical AoE, 1373-1678 damage, costs 200 TU
Feud Spear - +70% per ENEMY Fire arkadion, 2381-2910 Physical damage, costs 160 TU
Last Will - Passive, Death REvenge, +259 DEF and RES to active allies upon death.
2738 HP
1766 ATK
940 MAG
21 SPD
2528 DEF
2362 RES
PvP Stats
Guardian - Blocks attacks for 500 TU, costs 100 TU
No Guard - Removes all DEF and adds it to ATK for 500 TU, costs 100 TU
Stampede - Physical AoE, 816-997 damage, costs 200 TU
Feud Spear - +70% per ENEMY Fire arkadion, 1414-1729 Physical damage, costs 160 TU
Last Will - Passive, Death REvenge, +196 DEF and RES to active allies upon death.
1643 HP
1049 ATK
544 MAG
17 SPD
1499 DEF
1398 RES
What does AoE mean
Thanks Taijd.
Its moveset is very similar to Subz, but actually I prefer Goldenhorn much more than Subz.
My favorite is Last Will. Combined with No Guard you can control when it will die and which two Arks will benefit from Last Will. Last Will does make a big difference, try it on Magmawyrm, Typhoonwyrm or Omegawyrm and you will see what I mean.
Note that though, being a Beast, it does not survive that long. 
AoE means like Attack on Everyone right?
Thanks dry bones.
Wooooooow, I really suck. Didn’t know taj already posted it. Lolol.
Wait…what? What does this mean? I must have missed something…
Nice OM!! Grade booster definately a good thing. Yes!
Thanks devs!
Meaning that the egg spins can be timed for the moment but it won’t be for much longer
It’s Area of Effect but I like your answer lol
…and how do you know this/ where did you hear this? That is what I was asking… I could understand what you were saying 
“…and how do you know this/where did you hear this? That is what I was asking… I could understand what you were saying”
The developers.
Personally I’m against putting Arks that are always available in a gold egg. It’s always going to be there (unless the update changes this). Why not keep adding unreleased arks to the OM? Is the pre-evolution enough incentive? Sorry for the rant just a tad disappointed that I didn’t see Vortrex this week.
I am against putting Arks that will be released in missions, in gold eggs. I’m not against putting Arks that are in gold eggs in missions. There’s quite the difference.
Ah… good news I think. Looking forward to catching the OM pre-evolutions that I’ve missed when they are released in the wild, and seeing how this non-timeable egg is instituted.
Back on topic. I’m excited about this week’s OM, though I’m in pool B (Shadowstalker) and not able to play this afternoon when it launches…
ummmmm i don’t understand what you did with that…