Alright if I ask a Dominator question concerning Regeneration?

I was making a plant/psy Dom, and I noticed that between Spirit Tree (which maybe can be stacked) and Drain Psyche, a high recharge Dom can get nearly 2500% regeneration. Is this as godly as it sounds?

No.

while you can stack spirit tree, and even if you get a good drain psyche, you prolly wont get to 2500%, maybe 1500-2000% at most

however, pure regen wont save you from big hitting things

I realize that, but I figure I'll also have perma-dom and be able to lock things down pretty well, and also I'm gonna be end-draining things. With the -recovery from Drain, along with power sink I feel like if I could make it about 30 seconds, I'd be unkillable.