After Rachel briefly returns, she helps fully resurrect the Phoenix and gives its power to Locke
Sometimes, but most people are happier foiling selectively
The equip ability on its own, without outside help from cards like Leonin Shikari, cannot be activated at instant speed, so if you play an Artificers Hex on an equipment thats already attached to a creature, they will not be able to remove that equipment before they are in their main phase, guaranteeing you a dead creature
When the Roamin Throne enters the battlefield, you get to pick a creature type, and then triggers from those creature types are doubled
There's a lot of stuff going on with Vraska, Betrayal's String that makes it worth the steeper price point, such as the aforementioned Poison Counters, the Proliferate effect, and even the ability to neutralize threats by turning them into treasure artifacts with its most costly attack, this card can end the game with its Poison Counters alone
Control, however, is completely missing