Deck of several things

My party (cyberpunk.dieselpunk homebrew) was exploring tunnels that turned out to be part of an ancient crashed beholder ship....and we saw I tunnel veering sharply down..and we thought we saw something glitter. My gnome druid, a backliner wound up going down alone (I think the beefier party members thought it was a trap) so I am the one who found the young dragon's treasure horde. a few dragon scales, some items worth 100-300 G, an ioun stone of sustenance, and this deck.

I haven't read all the cards (I just took a peek). It's (i believe) a weaker, adventure specific (DM can adapt it to the ship) weaker version of the deck of many things. Looks like a lot of the cards are adventure long but this campaign is one long adventure (Lev1-20 and we are 9 now). You have to call out how many cards you are taking and if you don't pull that many....all the remaining cards hit you...but cards get put back in the deck when used...so that's a lot of cards. My current thought is it's too risky for my little gnome...and to just hand the deck to the wizard who is excited to use it. I'll tell people to call out one card at a time (I know they won't) in case a card stops them from drawing another card (imprisons them or something).

What do you think of this magic item? Worth the risk? is there a better strategy to using it? We can make a new character if PC dies (I'd rather not), but it would need to be a cleric or Druid because nobody else fills those roles.