This is beyond OP. Just compare it to Fahrenheit:
+ Fahrenheit is 1 damage for every 5 quanta, this is one for every three;
+ Fahrenheit is a weopon, which means there can only be one at the same time, or you'd need Animate Weapon;
+ This is death, Fahrenheit is fire. Death has explosive quanta generation methos with Schrodinger's Cat + Soul Catcher. Three cats + three catchers + six pillars = 27 quanta each turn with only 12 cards. Fire doesn't have such quanta generation methods. Say you've got three copies of this card, your damage output increases by 27 each turn.
A fire stall is already a know strategy, now add death stalls to it...
CC may counter this though, while fire is more immune to CC. I think that this should simply not be in death and have it's ratios ajusted.