Obelisk

When you deploy an Obelisk, you can choose whether it is powered up or powered down. If it is powered up, it follows the normal rules for a vehicle of its type. If it is powered down, it may not move or shoot, but has a 3+ invulnerable save. You can choose to power up the Obelisk at the start of any of your Movement phases. An Obelisk that arrives by Deep Strike is automatically considered to be powered up. Once powered up, an Obelisk cannot power down later in the game.

All enemy Flyer, Skimmer, Jetbike and Flying Monstrous Creature units treat all terrain within 18" of an Obelisk, including open ground, as dangerous terrain. Zooming Flyers and Swooping Monstrous Creatures must also take a Dangerous Terrain test if they move within 18" of an Obelisk, even though they do not normally take dangerous terrain tests.

Deep Strike Mishap Table: D6 Roll

1: Terrible Accident! - The entire unit is destroyed!

2-3: Misplaced - Your opponent may deploy the unit anywhere on the table (excluding impassable terrain, but including difficult terrain, which of course counts as dangerous for Deep Striking units), in a valid Deep Strike formation, without rolling for scatter. Units embarked on a misplaced Transport can disembark during their Movement phase as normal.

4-6: Delayed - The unit is placed in Ongoing Reserves.

A model with this special rule ignores the effects of Crew Shaken (but still loses a Hull Point). At the end of each of your turns, roll a D6 for each of your Heavy or Super-heavy vehicles with this special rule that has less than its starting number of Hull Points, but has not been destroyed. On a roll of a 6, that model regains a Hull Point lost earlier in the game.