Hate to break it to you but Hades is actually one of the best Tanks in the game. Damage redirection, revive, and a Red skill that has him stay at 1 HP that triggers once before and once after he revives.
I do agree that most of those tanks are worse than Baymax but the discussion was about why Baymax’s entrance is bad and not of here are all the Tanks that Baymax is better than. A Tank is not simply a damage sponge. That is their main purpose but certainly not their only one.
Baymax does also have a Study that lasts for 12 seconds which is pretty good in and of itself on top of either giving his allies extra armor with increased shield strength amd duration with Wall-E’s disk or increased skill power and his “useless” entrance attack freezing for 2.5 seconds. He also boasts some of the highest Armor in the game reaching a max of 240k when you have him maxed out. Now the main reason he is weaker than other Tanks is his lack of sustain but to call him weak because of his entrance skill which is in all reality one of his strongest skills is just flat out wrong.
The three biggest reasons that Baymax is not top tier currently is because of his lack of sustain, how strong Fantastic damage dealers are and how weak Normal Damage dealers are.
The three top tanks currently are Hades, Oogie and Gerald, Marlin & Nemo. All of which have sustain and high Reality along with Hades and Oogie being scarers. Hades has his revive and Red skill nonsense. Oogie has healing and theoretically infinite max HP and Skill Power scaling and G M&N having a 70% damage reduction along with a 10% Max HP heal every 2 seconds.
Only 2 of the Top 11 Damage heroes in the game are Normal Damage primary dealers in Beast and Miss Piggy. All the other 9 (Kida, Scrooge, Duke, Megavolt, Stitch, Elsa, D&B, Peter Pan and Randall) including the 2 S tiers, Peter Pan and Randall are Fantastic damage dealers. This is a double edged sword for Baymax as his study and ludicrous Armor growth are not as useful not because they are weak skills but purely because of the current meta.
This isn’t even mentioning how common blinds are in the current meta with H&D, Collete, Powerline or how Captain Hook is another counter to Normal Damage heroes because of his white skill or the fact of having Beast and Miss Piggy could be taken over by someone like Jafar.
There are so many factors why a hero like Baymax is not currently top tier, but that does not make him bad, nor is the reasoning behind his placement due in any way, shape, or form, because of his entrance skill.