you have to remember that you cannot spam these, as it takes up all your quanta unused by the cost, but aether's is terrible in comparison to entropy, even at max hp it only deals 20 damage, unless they use multiple shards, which i find unlikely at the point it will still do 20 damage, while entropie's deals 20 damage minimum, and can thus be used as a kill, and i would probably keep half non-upped in case i want the damage dealt, and use the upped if i was indifferent maybe change the aether to immortalize all your monsters? or maybe 50% if immortalize is too much. or if no balance for aether can be found then nerf entropy to the point of 10-20 damage perhaps?
Also a good one for life would be "rejuvinate" which removes all stasis inflictions from yourself and all your creatures
and maybe death could add 3-5 boneyards? or generate 5-10 elite skeletons