Rust Eater

This article really shows how much the writers really know about the game and the characters itself.

Let's take an example on Bennett.

He is (and will probably stay) on of the strongest buffer/healer in the game. Does that mean that you can occasionally play him in every team? Hell no. Since his special ability field isn't that big, it's highly depending on the kit of the main character of the team. Looking at Kinich's movement kit with him sliding around in circles around the enemy, Bennett is a big misfit. A better fit for a pyro character would be Dehya, since the field she places does automatic pyro dmg on enemies getting hit in it's radius. Or the f2p variante Xiangling, who has two abilities that can effectively set enemies ablaze. Since playing Kinich will require a lot of focus on his movement, it's highly recommeneing to take a good shielder with you or a healer with no stationary heal since we are going to move around a lot. According to this article, it's recommenended to take another dendro charakter with you, which is, if not taking Emilie, absolute bullshit. Emilie is still useful doing hella lot of damage profiting from the burn effects, but every other dendro char is just a waste of your team slot. If you wanna play burgeon instead of burn, and you'll take whatever hydro charakter you like, you'll HAVE to play Xiangling, since no other pyro char can deliver pyro supply on a regular basis to this point. Dehya won't help you guys at all because her field does only apply pyro damage on enemies but not bloom

Regarding the comment on Diamante's Armament Haki, there is nothing like "invisible" Haki. Haki was never a visible power to begin with. As we remember, especially Armament Haki had it's debut with the Enies Lobby Arc as part of the martial arts of CP9, respectively being CALLED Armament Haki firstly at the Sabaody Archipelago, used by Sentomaru. At this time, we simply could see Armament Haki, because it wasn't a big thing at the time, taking it's big role initially in the New World. So after the time skip, the Armament Haki got symbolized through the black (or violet/red) colouring we all know and love. So Armament Haki isn't visible at all. Therefore we can't blame Flamingo for laughing at Luffy's Gear 4 Bounceman, since he just saw a bouncing white ball, who seems to sweat to an extend it's sweat starts to vaporize around his neck.