Since youre sacrificing creatures to the emerge ability, you dont mind effects that cheat into play, creatures until the end of turn, like Sneak Attack
There are so many cheap artifact spells that, even with only one turn to do it in, you could be quickly making a ton of Drone tokens
The potential to start building your army and drawing extra cards that early is quite nice, and it means you do not have to over commit to the board
I dont currently have a +1/+1 counter-themed deck that this would nicely fit into
Then Ill need about 10 more to reach a consensus
Part of the value of Toxic Deluge is that life is less risky to pay in powered formats, an extra turn of speed is more valuable, and the tactical applications of Toxic Deluge are quite important