So, with the Magic Overflow Glitch, as I talked previously, it's more quicker to finish almost every wave with magic. And atop of that, you can use properly all the magic you have until the Golden Death Armor (last boss before Dark Guld), and still will have some magic leftovers. I'm gonna make a full guide of the least magic level you can use in every wave/boss fight playing with Tyris Flare on Normal.

2nd Stage:

1st wave/2nd wave(1 Red Greness/Zakkar and 1 Mounted Red Magician/Red Zakkar) = lvl 4 magic (get the Chicken Leg) 3rd/4th/5th wave (3 White Skeletons/ 2 Black Magicians) = No magic, use the Chicken Leg 6th/7th/8th wave (5 Black Skeletons/3 Red Skeletons) = lvl 5 magic Boss Fight (Bronze Death Armor/2 White Skeletons) = lvl 6 magic, use the chicken leg once if you still have it, if not go for normal attacks.

3rd Stage

1st Wave(2 Blue Grenesses/Zakkars) = Lvl 3 magic 2nd Wave (1 Black Greness/Zakkar) = Lvl 4 magic 3rd Wave (3 Green Magicians) = No magic, one long jump attack will do. 4th Wave (2 Green Minotauros) = Bait them into the pit. 5th Wave (2 Purple Grenesses/Zakkars) = Let them walk into the pit. 6th Wave (2/3 Purple Greness/Zakkar) = Try to throw them into the pit Boss Fight (4 Purple Hell Lizards) = Lvl 6 Magic

4th Stage

1st/2nd wave (3 Black Skeletons) = Fall into pit 3rd wave (4 Black Skeletons) = Lvl 6 Magic 4th Wave (1 Purple Hell Lizard/ 2 Zakkars) = Hit the Hell Lizard with a long jump attack. As soon he falls, charge the lvl 5 magic 5th Wave (2 Purple Hell Lizards) = Lvl 6 Magic 6th Wave (1 Mounted Red Magician/1 Red Hell Lizards) = Lvl 6 Magic (Get the Dragon) 7th Wave (3 Red Hell Lizards) = Lvl 6 Magic Boss Fight (2 Red Minotauros/2 Red Hell Lizards) = Lvl 6 Magic, one dragon flame hit (or a long jump attack, if you lose the dragon)

5th Stage

1st Wave (2 Purple Lizards) = Lvl 6 Magic 2nd Wave (1 Mounted Black Zakkar/2 Black Grenesses) = Lvl 4 Magic (Get the Dragon) 3rd Wave (1 Mounted Black Magician/1 Black Zakkar/2 Black Grenesses) = Lvl 4 Magic 4th Wave (1 Black Greness/Zakkar) = No Magic, bait the first into the pit, the second one is more easy to fall 5th Wave (3 Red Magicians, 1 of them is mounted) = No magic, use the Dragon Flame here (need some testing here) 6th Wave (2 Red Minotauros/1 Red Greness/Zakkar) = Lvl 6 magic, use the dragon flame once on each Minotauro 7th Wave (3 Red Zakkars) = Lvl 4 magic 8th Wave (2 Golden Grenesses/1 Golden Zakkar) = Lvl 4 Magic Boss Fight (2 Silver Death Armors) = Lvl 6 and 5 Magic

6th Stage

1st Wave (3 Black Magicians) = Lvl 1 Magic (3 Magic Books) 2nd Wave (1 Green Hell Lizard/Black Greness/Zakkar, then the Blue Minotauro) = Lvl 5 magic on the first part. As soon the Minotauro get out of the door, go right close to the door and do a simple jump attack. Lock him in the pillar and give 5 long jump attacks. 3rd Wave (2 Purple Hell Lizards/Grenesses, then 2 Blue Minotauros) = Defeat the first 4 enemies with a lvl 6 magic. As soon the Minotauros spawns, give a lvl 6 magic and a lvl 1 magic (3 Magic Books) 4th Wave (3 Black Skeletons) = Lvl 6 magic 5th Wave (3 Purple Magicians) = Lvl 3 magic 6th Wave (3 Red Skeletons) = Lvl 6 Magic 7th Wave (1 Golden Greness/Zakkar) = Lvl 4 Magic 8th Wave (2 Golden Grenesses/1 Golden Zakkar) = Lvl 4 Magic Boss Fight (Golden Death Armor/3 Red Hell Lizards) = Lvl 6 and 5 Magic