Their Ability, Violent Appetite, lets their trainer heal them for 60 HP when discarding a pokemon card from one's hand, allowing Naganadel & Guzzlord to stay on the field even longer than normal
I also stream on Twitch on Wed-Sat-Sun, often times with decks I will end up writing about here
Everyone has rulings against them so if that happens then try not to get too eaten up about it, move on and concentrate on winning the rest of the games in front of you
Right now, this seems to be more true for Lorcana than it is for other trading card games, which often have top tier decks stuffed with cards that are hard to get hold of
You often hit a midgame where you have stripped your opponents hand with Cabal Therapies and have a few extra left in your graveyard, and with a Monastery Mentor on the battlefield each Cabal Therapy in the yard gives your team +1/+1
The only difference is getting from place to place uses fast travel and gets rid of exploration