If you are planning to do Nightfall: Ordeal Master Difficulty in this weeks strike, I would strongly not recommend it. The Modifiers for this specific strike is so unforgiving that the evasion tactics are one of the biggest risks. The best way to avoid the bosses attack is in-air movement, which the modifier discourage that. Using cover is the best strategy but this strike boss removes and moves the cover and the strike boss moves around the cover which makes such stress on trying not to get melted by the boss or the ads. The ads are definitely the ones to focus first, they are not to be ignored, these would stop you from doing any damage to the boss and wipe you more times than the boss. Even the bubble/well strat is just a last ditch attempt and if it goes immune before you are able to kill Dendron you will not survive the amount of ads they throw at you. So I would think that Dendron the Vex Root Mind is one of the worst Strike bosses in Destiny. Yes, even the Fanatic and Pre-Exodus Black Strike is more I would prefer than this strike on that level of difficulty. EDIT: Also I was looking up people who've done this strike on master difficulty on youtube and don't see many results.