(apologies if this should be in Tactica, but I felt that this would be more relevant in the general Adeptus Astartes section of the board because it's only about Marines)
So, this came to me while I was in the shower this morning (I know, shower thoughts are best thoughts ), but I realized that Shadowspear gives Space Marine players the ability to deny the ENTIRE BOARD to enemy deep-striking. And it only involves three data-sheets.
Primaris Captain in Phobos Armour
Relic Land Raider Proteus (equipped Explorator Augury Web)
Each unit has an ability that stops enemy deepstriking within 12" of it.
You could take a patrol with just those, splitting the Infiltrators into two squads, and if you set them up in a straight line with no overlaps (which as you'll see is difficult) means that just between three (technically 4 if you combat-squad) you've got a 24"x120" area of no deepstriking due the wording of the abilities.
And that's only 654 points to deny a MASSIVE area of the board to your opponent. Add more of those units to the front and back of the 'line' and the area denial gets even larger.
Obviously, not getting any overlap would only work on Apocalypse boards, but even with overlap, it makes a massive zone of board control just by those units being there.
So if you're in a meta where people like to deep strike a lot of units....
Edited by Gederas, 26 May 2019 - 02:56 PM.