@yaldabaoth123: You have several problems.
- TGoaliD is just a 100% kill rate, not an omnipotent hax that can kill anything when he wants.
- You're using KH stats when you summon him, which is different to Grand Assassin King Hassan who indeed has rank EX PC
- The best teleportation in Overlord is Greater Teleportation, which consumes massive MP, otherwise the normal 7th spell only teleports you some hundreds of meters
- Ainz has not an unlimited mana pool, he has several problems facing 1v1 combats as shown against Shalltear. If he could just Time Stop + TGoaliD he could've done that to Shalltear. Also, he needs to chant the spells using his voice at normal human spell, so he's as death as Gawain if he wants to face an hypersonic being
Dude where are you getting your information for Overlord from? There is no indication that greater teleportation or time-stop require a great amount of mana, also greater teleportation IS the 7th tier spell. Not only that, but Shalltear and every lvl 80-100 NPC has time manipulation resistance, in the Drama CD Ainz spam several time-stops against a giant tree and the Guardians continue to walk and talk normally within these time stops. Also, every spell Ainz can cast with just a thought, its call [silent casting].