Chien-Pao is a Dark & Ice type, is a part of the ruination quartet, and has my favorite design of the ruination group, as well as my most favorite shiny of that group. Alongside not only it being my favorite of the ruination four, but it's also what I would deem the best battler of that legendary quartet, and one of the best battlers from the Paldea pokemon as a whole. I mean when you look at things, Chien-Pao has fairly good stats, an amazing movepool, and best off all is its Sword of Ruin ability lowering the defense of opposing pokemon by two stages, which really just makes this an even bigger powerhouse. I absolutely love Chien-Pao, but I just felt the others better suited a top 5 over this, which is why I chose to give this sixth.
Pokemon Left:
Ceruledge
Annihilape
Clodsire
Great Tusk
Iron Valiant
this is number 2 for me