[quantum_mechani]

NTJedi said:

Considering that it's 50 astral gems for one creature with low magic resistance that turns independent once it's moderately strong and requires 4 astral and 4 death just to cast the spell definitely places it near the top of worst spells. The spell is not only difficult to cast, but the creature is not even worth 8 astral.

Based on your unstable statement... please enlighten us on the MANY spells you feel are greatly worse.

Ok, if you like...

Lets start with Wrath of the Sea. 70 gems and I can tell you, I'd take an eater of the dead instead in all but the most unlikely circumstances.

Then there are spells like Hand of Dust, when was the last time you saw it cast, let alone accomplish anything?

Or there is poor Curse of Stones, easily negated weak effect that hits both you and the enemy, and even costs gems.

Or take a look at arcane domination, scarcely easier to cast than master enslave, but you could play 10000 games without running into a situation where it would be more advantageous to cast.

And good luck finding a situation to use Blood Heal or Pain Transfer, by the time you need it your blood slaves are long dead.

I could conceive of using the eater of the dead, in a situation without access to any other summons using astrals. Not to say it's not very weak for the cost though, I wholeheartedly agree it needs a boost.