If mill is not competitive in modern at the moment, what is it lacking?
Easy: it lacks cards that mill. There is not a single creature that attacks and mill for example. There is no card that mills 9 cards for 1 mana (lightining bolt 3 damage for 1 mana...)
you have other lands as well, crab into fetch will always be better than tomb scour into fetch - oboro just gives you a permanent landdrop every turn for crabtriggers. in worst case it can make a black/white mana (from basics) to blue. but as ive stated earlier, you can GQ your own lands.
I've tested your deck (took it some pages back), and here it is how it dies so far:
1. Blood Moon
2. Aura Hexproof
well you dont play neither ghost quarter nor path, so trap isnt very strong in your deck. you dont play oboro either and either youre trolling or you have no clue how much worse funeral is compared to crab. granted its bad lategame (unless you saved unfetched fetches and GQ), but what you strive to do is to win in turn 4-5 ish, and i can hardly see you ever doing that unless you hit everything on curve, or you have the best miracle funeral.
breaking is a strictly worse glimpse and is just barely playable - mind sculpt should not even be considered. im unsure about tomescour, its defo better than sculp but id still rather run both trap and crab over it any day.
Oboro is a single card. You hope to use crab only if you draw it?
I've tried both Archive Trap and Hedron Crab, and I've not included them because they only work if drawn in first hand. Later on lands and fetchlands have all been played for crab effect and with five mana you will never cast the trap.
Easy: it lacks cards that mill. There is not a single creature that attacks and mill for example. There is no card that mills 9 cards for 1 mana (lightining bolt 3 damage for 1 mana...)
I've tested your deck (took it some pages back), and here it is how it dies so far:
1. Blood Moon
2. Aura Hexproof
Oboro is a single card. You hope to use crab only if you draw it?
4x Watery Grave
4x Swamp
4x Island
4x Marsh Flats
4x Polluted Delta
Defense/Control:
3x Crypt Incursion
2x Damnation
3x Surgical Extraction
4x Breaking // Entering
4x Mind Funeral
4x Glimpse the Unthinkable
4x Mind Sculpt
4x Tome Scour
Draws:
4x Thought Scour
4x Visions of Beyond
4x Serum Visions
4x Spellskite
1x Surgical Extraction
4x Echoing Truth
2x Damnation
4x Inquisition of Kozilek
I've tried both Archive Trap and Hedron Crab, and I've not included them because they only work if drawn in first hand. Later on lands and fetchlands have all been played for crab effect and with five mana you will never cast the trap.