I would say it's not a good plan but it's a plan, except this is very literally without any sort of plan for what is going to happen
Nearly every creature in the deck has flying, so unless your opponents also have creatures with flying (or reach), your attackers won't be able to be blocked for explosive combat steps
So, I guess Ugin's the winner, but like I said, 2015 wasn't an especially broken year in Magic
That said, I have found them to be somewhat lacking in the long run
If you want to be able to haste up utility creatures like Goblin Welder then Dragon Breath will not be helpful as it is too small
The consideration of a tracker using a glove to hunt down a hapless human is absolutely wild in its implications, and that makes this one sufficiently creepy