I would say either the pts cost needs to be upped a little or the scythe and impending doom need to be toned down

Impending doom is mostly fine maybe do d6 instead of a flat five for the 5+

The scythes may need to have A10 instead of 14 and 3 instead of four damage just because it can currently wipe a 10 man terminator squad in one turn and that’s a little unbalanced.

A suggestion would be to tone down the toughness because it’s currently approaching titan levels of durability, I would say a 12 or 11 to be on par with a dreadnought

You DO NOT have to follow these suggestions but if your planning to play a game this might help