It occurred to me earlier that the majority of our ideas and suggestions about GTH have revolved around draining the targets nano in such a way that it still crippled/severely hindered their casting abilities. The idea is sound, it's the implementation that everyone has the problem with.
What if we changed GTH to take a bit of a different approach than the current style of thought?
(Note: any numbers presented here are just pulled from thin air for the sake of the example/suggestion)
Currently the focus on GTH is in how it drains an opponents nano and gives it to the trader, obviously this cripples the opponents nano abilities while boosting the Traders, and even suggestions to modifying GTH still rest on this initial premise of draining nano.
What if GTH drained nanopool instead of nano?
Lets say you cast GTH on a target. Rather than draining away the targets nano, GTH instead reduces their total nanopool to say, 10% of their normal max for an NT, 20% of max for other targets (so if an NT normally has a 35k nanopool it gets reduced to 3500 for the duration of GTH), and the trader gets a bonus to their max nanopool for the duration; say, an extra 10k max nano vs an NT, 5k for other targets, as well as the new larger nanopool being filled to that new max, kinda like a mini Izgimmer's wealth.
No ticking nanodrain, no effect on nanodelta, simply literal nanopool theft. The reduced nanopool size still accomplishes the objective of withering the opponent to a shell of their former nano casting abilities, but doesn't leave them totally hopeless for nano.
I'd say a 30s duration and a 1 target at a time rule (ie; can't GTH a second target just like the current implementation) should be fine for pvp as well.