X drop
Chalice of the Void: Not much to say. Chalice can protect us from many forms. Many decks on modern tend to play in one same curve. Chalice can "kill" half of some deck, giving us time. [3~4]
Walking Ballista: Can grow every turn, can enter big, can kill small creatures and we can make much mana. Dont have why to no put ballista in list. [2~3]
1 drop
Expedition Map: The must for all Tron bases. Can get too our Land Destruction lands. [4]
2 drop
Lightning Greaves: Enables win in a turn with Blightsteel Colossus. Protect our creatures and give haste, so powerful. [1~2]
Mind Stone: Our ramp redundance for not depend 100% on tron on-line to make plays. [4]
Alternative
Ichor Wellspring: Its just a draw and food for Kuldotha Forgemaster and sinergie well with Trading Post. [3~4]
3 drop
Crucible of Worlds: Important part in the LD package and against LD. [1]
Alternative
Filigree Familiar: Life and card advantage. its a good creature to give us time. [3~4]
4 drop
Lodestone Golem: Tax and beater piece. Each attack hurts. [4]
Trading Post: Our Swiss Army Knife. Can gain life, trade 1 life for an chumpblock, recovery our creatures (can make infinites Wurmcoil Engine sacing one then an token. Best sinergie with Spine of Ish Sah. [1~2]
5 drop
Batterskull: Good against remove, nightmare of aggros/burn. [1]
Kuldotha Forgemaster: The card give a name to deck in legacy. Have a good power in modern too, with Lightning Greaves can active in same turn she enter, it can do some tricks seeking some response at instant speed. Double draw with Ichor Wellspring, return Spine of Ish Sah to hand, and a good body. [4]
6 drop
Wurmcoil Engine: We all know the power of the machine. Give all the time we need for the bigger or can win alone sometimes. [3]
Alternative
Scuttling Doom Engine: A good beater, cant be chumpblocked and have a good sinergie with Trading Post, can do damage outside combat ou double damage (attack and sac) [1~2]
Steel Hellkite: Flier beater with an EE on body, seens good. [1]
7 drop
Spine of Ish Sah: The "resolve anything" piece. Rly shine on mirror, can destroy Planeswalker we can beat, can destroy lands and slow opponent, its rly good. [1]
All Is Dust: Sometime we just need to reset the table. [1~2]
Alternative
Platinum Angel: An not answered angel with Lightning Greaves can just autowin the game. [1]
8 drop
Sundering Titan: Terror colored decks. Can support one strategy of the deck (LD). [1~2]
Ugin, the Spirit Dragon: Ugin can swipe the table, can control small creatures, can win the game. [2~3]
12 drop
Blightsteel Colossus: Sometimes 1 attack is all we need. [1]