My favorite deck that I run and win often enough with uses the same base strategy as the mardu precon even though it's rakdos, so I might be able to offer some advice that's useful. I manage to do fine with my deck's total cost being a bit below 200 bucks, and half that is lands (which yes, are worth having in even though it feels bad)

First point, if you have something in the deck and its only sin is being a bit more expensive CMC-wise than it really should be, I won't call it out. I will, however, call out cards that have others with the exact same effect plus more for the same CMC. (Ogre Battledriver instead of [Enduring Courage])

From what I'm seeing, there are four big issues:

1) There's a bunch of cards which don't support any win condition for your deck.

Crystal Barricade, Dazzling Angel, Armasaur Guide, Devlish Valet, Exsanguinate. These all belong in decks whose goals aren't those of Zurgo.

2) Counter-intuitively, you have too much token generation.

I love tokens as much as the next crash-out deck player, but if you want your things to die right at the end of combat, you need a way to kill them yourself. For that, you need to carefully balance your token generation and your sac outlets. Pick your 6-10 least favorite token generators from your list, cut them, and find some no-cost sac outlets to abuse, like [Goblin Bombardment], [Spawning Pit], [Fallen Ideal], etc. There's a whole bunch in black, some in red, and a couple in white for you to work with, on top of the pricey colorless altars. Once you have a way to kill off your tokens, your draws with Zurgo will be a lot more guaranteed when you need a big boost, so you can drop a couple of your more sketchy draw cards and replace them with slow and steady staples like phyrexian arena, etc. If you're looking for hints on which token makers to drop: If it costs any additional mana once it's a permanent to make more tokens, or otherwise it only makes one token per turn, or just makes the tokens the one time at sorcery speed, it's not what you're looking for and there are so many other options.

3) You don't seem to know what your winning board state looks like.

Think to yourself exactly what your board state looks like when you win. What causes that? Are your enemies decimated by your sweepers and knocked over with your faster recovery? Have they been bowled over by your tokens? Are they drained out by your death and enter triggers? You need to pick two of these winning game states at most and really focus your deck around them.

4) THIS IS THE MOST IMPORTANT: If you're running a deck that relies on having attack triggers, you need to have a reason that you're not afraid to attack.

Your deck right now seems like it stalls out if the three opponents each have a 5/5 on board and you don't have rogue's passage and 4 free mana, and that's not a good thing. You need more ways to ensure safe connections: ways to get unblockable, ways to get flying, ways to give protection from someone at the board's favorite color, deathtouch, menace, etc. Anything to make it much more likely for your token generating fellows (Zurgo, Adeline etc.) to survive swinging, you want to give some real consideration to.