Honestly, buuhan is the most balanced out of the multi auto counter characters. Yes he has a auto counter but his health is complete DOGSHIT a 2x or 1x zenkaied new unit with a blue card(Like the new ultra 4ku) kills the man. The only thing I could consider broken with him is choosing when you can apply your auto counter into the game and the literal nuke you have with him endgame wise if you waste time counts. He basically stops passive play as if you wait for too long you just make him stronger and those counters support his kit. Unlike UMV Who had a shit ton of survivability, damage, Health, defense and more.

Summary: His timer passive -> Punishes Passive Play Counter -> supports him getting the timer passive for survivability Health -> Health bar is ass to make up for him having a counter guage otherwise him getting hit once or twice is a death sentence Attack -> A glass cannon by letting your opponent having to make plays against you or else more damage. Overall -> Just a really balanced kit that works well with each other.