Respect the Tree King
Personably I love my 6* King Groot (unduped naturally)
I will never truly understand why people dislike him so much. He’s built like a tank, blocks like a castle, and with Armor Break Fury and Poison he just takes a little extra time to kill. But when I can consistently get to the edge of death and slap an Sp3 once or twice (less if I Dupe my 5* ever) and be back to full relatively quickly like Ghost Rider except when duped he’s also gaining health between Sp3s
I get he hits relatively weak until the end but he’s fundamentally immortal if you play even the slightest bit decent.