As far as actually using Tangrowth Lv
They all become much stronger in combat, and if your opponent(s) has red or black spells, they can't do anything to your creatures since they'll have protection from them
That said, he's still pretty dickish like his father to just about everyone, although whereas his father pretended to be a decent person but revealed his monstrous personality away from prying eyes and more or less played part in death and destruction via his weapons dealing, Kaiba doesn't even bother to try to hide his aloofness (unless you count his villain days during which Faux Affably Evil was one of his main character traits) from everyone but uses his company to (accidental creation of future Duel Monsters' related conflicts aside) help create a society more oriented towards gaming and entertainment, as well as using the money to create amusement parks for orphans
Im really excited to see if there will be more focus towards Esports in the future so it really takes on games like Hearthstone and Gwent that had their share of success as an Esports but also a massive success with a more casual player base
"And I take it the royal cred and ruling half the country was just a bonus, eh?" "Oh, what a load of crap
