The best part about Marina is that you can actually totally ignore both of those effects, however
We're taking a look at the best cards in Graveyard Overdrive
At the beginning of your upkeep, if there are five colors among permanents you control, there are six or more card types among permanents you control and/or cards in your graveyard, and your life total is greater than or equal to your starting life total, you win the game
Even if its only one card, or you dont do it all of the time, or its not a sanctioned event, or whatever reason youd offer up as an excuse
So, the bottom line for the mythics is this: the value is good, probably better than most people expect, putting the set on par with Modern Masters 2017 in terms of average mythic value, but the variance is going to be problematic for people only opening a small amount of the set
Zack Fair [Extended Art] #435 Magic Final Fantasy Keep track of your collection value over time