Uberhaker

You could attain permanent flying effect with a program like quick memory editor (that is how I did it). You could enter the amount of available flying steps after using Orb of Thralni or after using Flight spell and enter that number in the editor (I think it was something like 4 or 5 steps after using Orb of Thralni). While flying around, you can refresh how many steps you have left in the editor, until you get one memory address left. Then you lock that memory address with 2 or more flying steps, which will not decrease as you move. With this method you can visit areas above the Black Fortress, that you normally could not reach. Similar, you could use the editor to teleport you to any coordinates that you can not normally enter (like Erika's or dragon's empty treasure room, slime monster treasure room with free coins, castle hidden rooms, etc.). You use Location spell for that cheat, and play with x or y coordinates in the editor.

Like Siobhan, Eurydice, Solberg, Giants (not cave ones)... (or something like that - probably left from Exile 1 and 2), there are also few Experimental monsters with random abilities and such . Had to try em all . And also dragons - sometimes they have bad graphic, since they take 4 spaces (and sometimes not).

Simulacrum was my favourite Exile 3 spell too. I used it all the time, especially when I faced tons of monsters at once - like in golems factory for example - 3 or 4 summoned Vahnatai Lords cleared the whole dungeon for me . I think one of the best summons at certain levels are: low lvl: Talking Spider (poison + hard hitter), Troglodyte Khazi, Vahnatai Warrior(ranged), Vahnatai Warrior(melee), Witch (lvl 5 mage spells). med lvl: Mad Monk, Ogre Mage, Quickghast, Slith Archmage, Slith High Priest (lvl 7 priest spells). high lvl: Empire Archer/Empire Dervish, Lich, Mind Crystal, Crystal Soul, Order Mage, Pack Leader, Ur-Basilisk, Vahnatai Blademaster, Vahnatai Lord (my fav summon), Wizard. I also tried the summons that you can't usually capture with hex editor and that aren't even in the game - fun times.