It feels a bit OP, considering that you can steal more than 5 quanta per turn via flying weapon, buffs, and crusader.
compare to devourers, which steals 1 quanta, but costs 2.
compare to discord. It scrambles 9 quanta, but that causes diminshing effect over a few turns, making it (without other cards) useless after ~6 turns.
I do like the synergy with mindgate; it would be a shame if this was nerfed to only destroy the quanta.