I am really curious why the Frosty Aura is rated so low. I would say that at the current price Frosty is too expensive for what they provide the army. But if the ability is viewed on it own it the the right tool to tip the balance where necessary. To push 4+ to 5+ or 5+ to 6+ or ensure out already high Agi units strike before certain high Agi opponents like units with Spears, other Elves or Warriors.
-1 to be hit is a simple 16% chance difference -2OS and -2DS can give you a 16% chance difference in two departments as well as ensuring to strike first.
1) if you are using the Frost Phoenix’s effect, you are charging. So MOST of our book is Agi6 when charging, with FW, SM, and KoR at Agi7. Literally the only things going first besides some characters are Elven Spears. The only thing going simultaneously are the three elven Super Elites. “Ensuring we strike first” doesn’t require the Frost Phoenix. It requires getting the charge. Often even THAT is not a requirement, as plenty of books cannot reach Agi5 with just charging momentum.
2) 5+ to 6+ cannot happen without additional investment. Either a Divination mage with Scrying (225 to 350 extra points), Grey Watchers (165 points minimum), or Navigator’s Banner (75 points, but only one unit can do it). So that’s out for consideration because the Frost Phoenix can’t manage it on its own.
3) 4+ to 5+ requires either a) Sword Masters vs non-elven OS4 or lower, or b) OS3 or lower vs our elites, or c) Additional investment for our Core. So you either luck out into specific matchups (and it IS luck. Zero skill involved in THIS one), or pay additional points to support your support piece into doing it’s job.
That’s why it’s rated so low: it’s a support piece that cannot do its job unless you spend more points to support it.