I dislike this.
This idea seems like a great way to add another six turns of splasheable damage stalling to a stall deck, when currently the maximum is 6 using sundials. Using them in combination would buy a player 12 turns of stall and would let a player draw 18 cards. That kind of nearly ensured stalling is boring for players, and you can bet if it got released, you'd start seeing the unstoppable 24 card stall in the arena.
Running splat with this in the arena would be an even easier win as well. Double draw, trimark time, same splat but splash in some sundials. Once the combo's going, the other player's going to be in a world of pain, since they can't stop you, even with low health, from using your stall combo.