Blink a Dockside Extortionist every turn for lots of mana, a Gray Merchant of Asphodel to deal extensive damage, or a Mulldrifter for plenty of card draw
You only get to pay for 1 mana for each creature you tap and thats it
Theres such a range of formats and play styles to choose from, each of which appeals to different kinds of players
it means you can get lots of extra mana if the creature generates mana, attack with abandon because youll be able to defend and, if your creatures have activated abilities, youll get to use them more
"The idea of it is a deal with the devil, right
This iconic 8-cost Amethyst powerhouse can exert opposing characters and completely freeze them down, preventing them from readying on their next turn