I don't see why you think this would replace Electrum Hourglass or make it obsolete, Spike. I'm also not seeing how this could be used to avoid deckout. There is no guarantee that your creatures die, unless you do actually have an Owl's Eye or something similar. I feel as if this card just doesn't work. Seems like it costs way too much, and in a duo you'll have even less Time Quanta to spare. Perhaps it would be better to have it target creatures and send them back into the deck.
Unless there's a deck idea someone has to make me think otherwise, it just won't work once in game. It is however a great idea, just not something I think can be executed.
Splitting this into two cards might work better. Something to draw the bottom card, and as stated before, send things to the bottom of the deck. Maybe a separate permanent that sends all killed creatures to the bottom. I get why the flooding like cost is there, since without it this would be a bit powerful in letting you do both drawing and sending back.
Decreasing the cost per turn to two, or even one, might make it more usable, removing it altogether might not even make it overly powerful, just more powerful than it is now.
EDIT: Alright, spark is a good idea for antideckout, didn't think of that. I still feel as if it isn't usable in game, though.