Spell 1 replaces the default heal minor wounds spell and is called A Gods Power its main power is to make you immortal and kills everything around you also any survivors like the next cell over if they hit you they will die.
Spell 2 replaces heal major wounds and is called God Of Time it has soul trap and paralyze and its purpose is to freeze and cast soul trap allowing you to feel like a god of time
Spell 3 replaces some light spell i think and is called Arise its more basic of the 3 and just basically summons a spider deadra and has detect life as you do it and it suppose to have reanimate but dont really work tbh.
Currently there some issues with God Of Times Power spell when it comes to having the ability to actually cast it as during my testing of it i found for whatever reason even though it should cost 0 its does cost some stupid amount of magicka and i have used console commands to fix it but like im not sure what going on because one minute it says i dont have enough magicka and the next it actually casts soo do expect some issues with it and expect to use adv skill mysticism 100 and player.setav magicka to use the spell also there is a strange issue with people spinning around after you cast it soo while its not intended behaviour it is funny.
There is issues with the original oblivion version of this mod due to the way animations and shit like that work so its advise to play in 3rd person when using the spells because of the fire effect on the character gets in your way a bit in first person also the second issue is when casting its a big wall of fire which this issue is not present on the newly released remastered version of the game.