Congratulations to you with these acquisitions!

The English language is not my native, And I'm only playin' in Steem Monsters only second day long...
And for me now there are a lot of discoveries!
Interesting to know that - if higher league - the more cards from the quest reward!

But, as I does not see in the post - that you muse about to level up the Monsters: I see a lot of Sea Genie - so you can do that as well.
And... about the Summoners as well. You also need the next level Summoner to use the abilities of the next level cards.

Good Luck!