If you have played the new Blood Harvest event in Season 2 of Diablo 4, you might have noticed that stacks up fast, especially in higher World Tiers. Here is how you can spend to upgrade your Vampiric Powers very quickly, even if you have gathered thousands!
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There comes the point where you are no longer looking to unlock or upgrade specific Vampiric Powers.
At that point you might just want to get all Vampiric Powers to Level 3 (which is the maximum) so that you don't have to worry about spending any longer.
Spending to upgrade Vampiric Powers.
The easiest way to do this is by clicking on the «Spend Potent Blood» button and closing the upgrade window (by pressing ESC) once it has popped up, rinse and repeat. This way the experience will be allocated to one of the three options at random and you no longer have to select an upgrade manually.