I have a crazy idea: Make self damage count for the total damage. This will somewhat mitigate the grindiness because high HP is very important in late-game, so you can heartmage trick a few times, get yourself to 10k+ hp and then simply nuke yourself (without having any immunities of course).

For those who don't want to get self noita'd or cannot do the trick, either deal damage to enemies or add the mestarian mestari route as an alternative, because either you can't find the ingredients for the trick, or you can't find the weakening curses. If you can't find both... tough luck I guess.

Slightly related to topic: Master of Electricity should make you immune to getting stunned by electric shocks.
Keep the damage but the stunlock breaks the flow of the game and makes using tele wands impossible in enclosed areas where even a pixel of conductive material will stun you. Hiisi base is especially annoying to traverse like this.

The other two master of- perks have fun gameplay, bigger explosions, increased movement speed and discount saving grace are very fun to build your wands and play with no matter the stage of the game, but getting stunlocked every other second is horrible.

hey! haven't had the time to dive into the obtain methods yet, but I've added stun protection to the master of lightning perk :)