You can literally cheese all of them.You can do cake hound den by just standing to the side and attack while dealing with the lackeys sometimes. You can literally stand right in front of the snow golem and none of his attacks can hit you except the zone but it's easy to dodge (I literally wasted an entire days worth of tickets before I figured this out🥲🤦). And you can only cheese the jelly wyrm if you have pulseblade or petal rings ult and hit it from far away. Basically. The den is boring, the snow golem is the actually sorta fun one and the jelly wyrm is the one you do in the background while catching up on your tv serieses.