I know you guys have posted Dota feats before but I have no clue where they're at can you summarize or send a link my way
nvm. I'll come back to this
I dunno the name of the tier required for this tbh, but tldr:
The verse is composed of 15 universes, and each one fractures into an infinite number of alternate versions at every moment. The Forge allows him to manipulate that cosmology to his own desire. He used it to nuke the entire thing while other characters had it restore everything back to how it was.
The universes themselves are finite afaik, just hilarously big (Mirana's bow entry talks about a "trillion trillion" light years or some shit). His speed also comes from that number. According to Weaver's bio there are creatures that can eat entire universes if left unchecked, so he went with a 1 minute timeframe to calc that.
Outside of that there's also rel+ to FTL shit like Mirana and Luna's attacks travelling from the moon to the earth in seconds. His own Sunstrike which summons a ray from the sun got calced at FTL by Merlight too iirc.
As far as hax goes he can reality warp, teleport, project himself astrally, induce sleep, create illusions to hide his castle, has bfr'd/sealed people inside books and paintings or just outright kicked them off his castle, invisibility, mana burn, etc
He also has some level of mind resistance, as he was unaffected from entering Foulfell, which mindfucked the rest of the party into seeing their worst fears iirc. Basically every hero has resistance to mind control too since they resist and are thus empowered by the Radiant/Dire ores, which can enslave entire towns and turn them into mindless zombies in the later's case.