First print copies of popular cards can carry a small premium, especially if they are clean, centered, and free of surface marks
Aside from being a 4/4 lifelinking first striker, Licia allows you to pay 5 life to put three +1/+1 counters on it
Not every instance checks out based on how the prices can sometimes be reported and not every instance shows you an opportunity to make money, but the cheaper version on CK is the foil from The List and that card is like $9 on TCG Player, so someone is wrong
Take, for instance, Dragon Fire for five ink, you can play this to banish any chosen character, getting potential challengers out the way or cutting off your opponent from their best questing characters
Let's take a look at some of the things that prove Magic Online to be the superior program, and the qualities that Arena simply does better