Here's a fun, yet, albeit frustratingly difficult to pull off OTK, Topologic Zeroboros is a lot like Gren Maju in the sense that he gets beefier with each banished card, but then he also has the bonus of starting with 3k ATK and can also banish everything before bringing himself back next turn, with even more added ATK, so I thought to myself... what if I built a deck off this monstrosity and this is the result of that, use Fusion Gate and Chain Material to spam fusion monsters while just dumping your basic monsters into the banish pile, end the 4-card fusion rush on Dragonecro to dump 2 Necroface at once, this causes 20 extra cards to be banished, then summon Zeroboros, then, if you can, fusion summon 1 extra card to activate his banishing effect, wipe the board on both sides, then pick a god and pray you don't take an L on your next turn. If all goes well, you'll have one beefy Zeroboros that you either sit on or win with, depending on how defensively your opponent decides to play.