I am one of the (un)fortunate people to get a Talisman of the Sphere and have a decent goal to find/get a Sphere of Annihilation any time soon. Is it really that if I force its movement to the enemy then it will only deal 4d10 damage? Even if that is true the enemy only needs to save a DC 13 Dex save just to deal 4d10 force? There is no insta kill component into it?
[RPG] Is the Sphere of Annihilation Magic Item Really Weak
dnd-5emagic-items
Best Answer
Yes, there is no insta kill component unless whatever is touching the sphere is smaller than 2 feet in diameter
The Sphere of Annihilation is a 2-foot diameter sphere and states:
In regards to moving the sphere it states:
Therefore the answer is: yes, there is a saving throw allowing creatures to escape the relatively small sphere and everything that is not wholly engulfed in the sphere only takes 4d10 force damage. Most creatures will therefore be allowed to make a saving throw when you force the sphere into their space. In the case that whatever the sphere is touching is small enough it states:
This means that you can obliterate items and creatures alike.
Tiny creatures
In general even Tiny creatures, the smallest category, have a space of 2,5 feet * 2,5 feet, although they are normally not that big, it's just the space they occupy. This might make you think that you should be able to obliterate Tiny creatures. But that is wrong as the Sphere of Annihilation states (emphasis mine):
This means that any creature that is not prevented from making Dexterity Saving Throws can always try to dodge the sphere and not take any damage at all. Possible conditions to constrain a creature so that it cannot make a Dexterity Saving Throws are:
When you constrain a creature it would of course still take the 4d10 damage until it's dead and not be annihilated entirely. But you might be able to talk with your DM about the case where the constrained creature is entirely engulfed in the Sphere of Annihilation. It would be homebrew, but there is a chance to rule for instant obliteration if the creature is small enough. In the case that you can constrain the creature the 2nd level spell Enlarge/Reduce might be interesting for you, too. Under Reduce it states:
This might help you obliterate enemies with your Sphere of Annihilation if you are bent on using it on creatures. I would recommend talking with your DM about methods to use the Sphere of Annihilation so that you are on the same page regarding occupied space and a creature's size.
According to RAW there is no way for an insta kill with the Sphere of Annihilation for any creature, no matter what size and in what condition the creature is.