Wow, I somehow got it and didn't even know it existed ^^
Hmm, I'd have to know how much is 50 tiles exactly as I don't really keep track, and what does "wasting" mean? If it's exploring without regenerating anything, that should be easily doable with any bloodmage. Simply pay attention and if you're going to explore on a full health/mana, cast something and regen some mana with Bloodtopowa.
If it means exploring fewer than 50 tiles... I think there would've been discussions about it before
Mada se i to da riješit, vjerojatno XD