Burn is great when you can stack enough damage quickly, but Life Drain often has the edge in Commander because every trigger can chip away at three opponents while keeping you safely out of the danger zone
5 Jarad, Golgari Lich Lord + Jumbo Cactuar Send That Damage Right To The Face Attacking with Jumbo Cactuar makes him a 10,000/7, but for all that might, it can be blocked by a measly 1/1 token, and nothing will happen to all that damage
They let you still play the game, even if youre low on lands
You have a lapse of memory, but it comes back to you when you have your next thought
However, its high HP and great synergistic secondary attack in Poltergeist give it some advantages: Banette ex can definitely OHKO some opponents, so its a threat even in situations when Item lock is not that problematic