Saving up for a frost?

[Althend]

Try playing a few game with extended requirements - if you still see everyone getting a frost, then that is a sign it may be overpowered.

However, I am in agreement with many others who suggest it is probably just because the frost tank is the most expensive tank you can purchase in a normal requirements without force upgrades.
In that case, there will always be one 'best' tank, unless of course some new tanks are introduced in the 11k+ range that have no/low requirements - which seems like a pretty lame reason to do so to me.

It is not the case if Demon Tank became the last tank without armor requirements. I mentioned this before. You use Hunter/Earth to fight demon. Sky to fight Hunter/Earth. Demon to fight Sky. Frost is in its own league with 4 specials that are effective against ALL tanks. -- Unlike the restrictions placed on the aforementioned.

Kinda true if there is no new tanks ^_^