MArcomage

Frost unicorn: in description it says, that if there is a legend and mage card in hand, then it will give magic +1, but instead it gives facilities +1...and I remember that in past it would give magic +1 even without another legend and mage in hand, not sure if its handled by now.

Master of the past: it seems that card doesnt work after quick/swift

IF you had another rare card in your hand, then Legend keyword gives you facilities +1.

And you can play no card which is based on last turn after swift/quick card.

oh, I didnt know that stuff...I wonder whats the reason for that?

Because you didn't read the rule book?

Master of past: FAQ -> Q10
Frost unicorn: Game manual -> Keywords -> Legend

Please try to go through the FAQ first, before asking directly on the forum.