You do have some control of gameplay, and your choices can make a difference. The format is a shuffleboard - a 4x4 grid of 16 boxes. At the beginning you can see all the prizes, but they are then shuffled into identical locked boxes, with the prizes inside no longer visible. You must then open the boxes using postal keys (the event currency). By opening a set number of boxes, you are able to use two main tools, or powers: the magnifier, which reveals the contents of any two boxes; and the double reward, which doubles the reward for the next postal box you open. Finally, you can spend keys to "shuffle," completely resetting the board. (For more details, you can read about last year's Winter Magic event
on the wiki or
at Elven Gems). So, while there is definitely still some randomness to it, there is also an element of strategy. Whether you consider it "good" or not will, of course, depend on your individual preferences.
To add to this:
While there are no Leagues for this event, this is still a format that historically, has lent itself to being a far better 'Grand Prize maximiser' vs. the traditional 3-chests style events...
- you get +1 to the counters for your two 'tools' every time you open a present. IIRC, the "Reveal 2" takes 17 presents, while the "x2" takes 15 presents before you can activate it.
- each box you open will give +1 to the grand prize counter. Each grand prize requires 20 'points' to unlock.
- each board will contain at least
ONE 'prize' that is simply a 'bonus' +2-5 grand prize boxes/pts. Usually though, boards will contain 2 such 'prizes', and occasionally, even 3 such 'prizes'!
- using the x2 'tool' will also multiply by x2 your grand prize boxes/pts!
- thus, you can use your 'show 2' + 'x2' tools to hunt down and try to use them as much as possible on only those bonus grand prize pts squares...
It gets really fun when you hit a +4 or +5 box with the x2 ability!
Since they added the ability to control the use of the 'show 2' and 'x2' tools to the shuffleboard style event, I've used the above strategy to easily unlock enough grand prizes to obtain
at least the 2nd copy of the Lv1 building AND 1-2 bonus artifacts via the grand prize rotation.
Also, you can further boost your grand prize haul by simply *NEVER* paying out to use the 'reshuffle' option, and instead simply always clear the boards of all 16 prize boxes.