New player team help <3

Hey so ive only been playong for about 2 or 3 weeks and I would like some help building a team from my current box. I currently run an all dark/green team with goetia, osiris, ruel, rainbowkeeper, and orchid. I dont know if this is the best I have available to me though. I'm currently able to clear most of the easier descends but only at legend difficulty. Mythical destroys me and as do most of the harder legend ones. Any help or future team advice is appreciated!

https://imgur.com/gallery/x94Hm

Edit: forgot link to box lol