Starting this deck on a budget is no easy task, although it's doable. Luckily, our deck takes shape with the majority of the cost coming from about 6 or 7 cards. The largest thing to consider when building this deck is what direction you want to take it.
Grove of the Burnwillows can easily be replaced with
Karpulsan Forest
or Stomping Ground, and your win percentage isn't vastly effected. They aren't as good, but they work, and are much more budget friendly.
Karn Liberated: is unfortunately crucial to the deck. You can see how he runs as two or even one (I ran one in my UW Tron and it worked fine), although he's better in multiples.
Wurmcoil Engine: Wurmcoil has seen a rise in price (I bought mine for $8), and is pretty important to the deck, but not irreplaceable. Some otpions are any of the not mythic eldrazi creature's from Rise of the Eldrazi. Ulamog's Crusher works, although a turn slower, Pathrazer of Ulamog is slower as well, and both feature the annihilator mechanic, which requires dealing with.
Blightsteel Colossus: Blightsteel is a fantastic card, don't get me wrong, but he's not necessary. He's a lot like Wurmcoil, in that he can be replaced. Pathrazer of Ulamog fits into the curve nicely, costing 1 less generic mana, which can make a difference. Again, the annihilator mechanic requires attention, so these creatures can do some solid work as well.
Ugin, the Spirit Dragon: Ugin is hard to replace, strictly. However, there are some other walkers that do similar tasks, and some spells that can take place. If you simply like him because of his +2, you can run Lightning Bolt. His minus ability can come in many shapes, such as Angelic Purge or
Celestial Purge
against Jund and other strategies. His ultimate is hard to replace, but you can get the lifegain and draw by splashing blue and going with Sphinx's Revelation, although you don't get the place 7 permanents part, and it's not exactly budget.
Emrakul, the Aeons Torn- Emma is also hard to replace. You can, however, do it. She's just another big creature. Artisan of Kozilek costs less, and is a big body with annihilator,
Bane of Bala Ged
easy casting territory and functions like annihilator, and there are several others that do the same.
Ulamog, the Ceaseless Hunger- Much like the other creatures, he can be replaced. Another Terastodon could work, or even
Bane of Bala Ged
would be a decent replacement if you like the sacrificing effec. At the end of the day, replace a big creature with a big creauture and see how it goes.
Nahiri, the Harbinger- unfortunately she shot up in price, and she's hard to replace. Faithless Looting works for her +2, Nature's Claim is similar to her -2, but the only time you're going to get close to her -8 is if Tinker gets unbanned.
Those are the main money cards, and some budget options. If you're looking to get into Tron, or like the idea of playing big creatures but don't want to drop $900 on cardboard, give them a shot. Keep in mind that any of these creatures can be replaced with something else in the end, so keep tinkering.