The deck additionally features cards that generate tons of value and keep the pressure on including draw effects (Tarrian's Journal and Mephitic Draugh, which doubles as a fantastic sacrifice target), removal (Bitter Triumph), and Protection (Family Reunion)
If you can drop the Sentinel on an early turn, most players arent going to be interested in holding their ramp spells in order to pay your tax
Like those, it was banned to avoid the perceived-barrier-to-entry, but was strong enough to be a candidate for banning even without the optics especially in long games where the card draw yields inevitability over time
They tend to have a ton of planeswalkers in the deck, with many of them having powerful effects if you can get their ultimate ability off
Unlike the Sword of X and Y cycle, it successfully promotes use of the combat step without discouraging interaction